Pre (1) I had a high fever yesterday, so I (. ) call in sick.

解説1.2 He (. ) attend the meeting. （出席しなければならない）

解説1.2 You (. )(. ) go out alone after dark. してはいけない

解説1.2 There is an elevator, so you (. )(. )(. ) climb the stairs. 必要がない

解説1.2 I (. )(. ) attend to ECC every Saturday because the company covers the school fees to attend 90% of classes （義務、必要）

解説1.2 You (. )(. ) drive a car after drinking alcohol. (禁止）

解説1.2 I brought my own lunch,so I (. )(. )(. ) eat out. （不必要）

Pre (2) I can't find my umbrella. I (. )(. )(. ) it on the train.

解説1.2 Your house is near the station. It (. ) be noisy. 違いない

解説1.2 I saw her running to the station. She (. ) have overslept again. 私は彼女が駅に向かって走っているのを見た. 彼女はまた寝坊したに違いない。

解説1.2 You didn’t talk with me yesterday. You (. )(. )(. ) angry with me. 怒っていたに違いない。（確信）

Pre (3) We worked so hard that we (. ) finish the work before the deadline.

解説3.4 He (. ) complete a triathlon race.（能力がある）

解説3.4 He (. ) complete a triathlon race when he was young. (過去の潜在的な能力　できた）

解説3.4 He (. )(. )(. ) complete the triathlon race for the first time. （過去の出来ことの実現　できた）

解説3.4 I (. ) play basketball when I was student. (過去の潜在的な能力）

解説3.4 If you follow the instructions, you will ( )( )( ) use this machine.（未来の可能）

解説3.4　This small box of chocolates costs $80! That ( ) be right. そんなはずはない。

解説3.4　It's a public holiday today. He ( )(. )(. ) to school.　学校へいったはずがない

Pre 4) He (. )(. )be sleepy. He slept more than twelve hours yesterday. はずがない

解説3.4 　You ( ) be hungry, you just ate another curry.（ありえない）

解説3.4　I'm afraid that Mr. Fisher ( ) take your call now. 申し訳ありませんが、フィッシャーさんは今電話に出られません。

解説3.4　( )( ) tell me the way to the bank?　（依頼：していただけませんか？）

解説3.4 You ( ) use my car anytime. (許可　使ってよい、　使うことができる）

解説3.4　He( ) have told us the truth.　彼は私たちに真実を話したかもしれません。 （過去の推量）

解説3.4　Accidents ( ) happen. 事故が起こる可能性があります。

解説3.4 His story ( ) be true. 彼の話は本当かもしれません。

Pre (5) I'm not sure, but the rumor about the merger of the two banks (. ) be true.

解説5 The bus is usually delayed. We (. ) have to wait for a few minutes. かもしれない

解説5 She (. ) have heard the story before, but she didn't say anything. 聞いたかもしれない。（過去の推量）

解説5 You (. ) use this room as long as you keep it clean. この部屋をきれいに保ってさえいれば、この部屋を使ってもよい。

解説5 Mr. Jones,(. ) I have a word with you? ジョーンズさん、一言お願いできますか？

解説6.7 If you are not happy with your job, you ( ) consider finding a new one. (アドバイス;すればいいんじゃない）

Pre (6) You have been working too much lately. You (. ) get some rest.

解説6.7　 I'm sleepy. I ( )( )( ) to bed earlier last night. 眠い。昨夜、もっと早く寝ればよかったのに。

解説6.7 you ( ) take in the laundry because my mother got home late. 洗濯物を取り込んだ方がいいよ。

解説6.7　 The bus ( ) arrive soon. はずである（推量80％）

解説6.7　A carton of eggs I wanted to buy was sold out. I ( )( )( ) to grocery store earlier. 行くべきだった

解説6.7　You ( )( )( ) to the party with us. We had a great time. 行くべきだった。（後悔、残念）

Pre (7) The doctor ( ) him a thorough examination when he was rushed to the hospital. 医者は、彼が急いで病院に運ばれたときに、彼を徹底的に検査するべきでした. (後悔）

解説6.7　The bus ( )( )( ) at 11:00, but it didn't.着くはずだった　（過去の推量）

Pre (8) Sam, can you open this bottle? The lid (. ) come off. サム、この瓶を開けてくれる？ 蓋が外れません。

解説8.9 Can you give me a ride? My car (. ) start. 乗せてもらえますか？ 私の車は始動しません。

解説8.9 They tried to persuade him, but he (. ) change his mind. 彼らは彼を説得しようとしましたが、彼は心を変えませんでした。

解説8.9 I was drinking for 5 days in a row. I (. ) drink tomorrow. 明日はお酒を飲まない。

解説8.9 I (. ) do my best to make my dreams come true. 夢の実現に向けて頑張ります。

解説8.9 It’s getting bright outside. I (. ) open the curtains. 開けます

解説8.9 Try this dress. I think it (. ) look good on you. このドレスを試してみてください。 お似合いになると思います。

解説8.9 Accidents (. ) happen. 事故が起きます。

解説8.9 I (. ) often go camping with my family when I was a child. 過去の習慣　〜したものだ

解説8.9(. ) you pick me up at the airport? 空港に迎えに来てくれますか。

解説8.9(. )(. )(. )(. ) I used your cell phone? あなたの携帯電話を使ってもよろしいですか。

Pre (10) You don't look very well. You ( ) ( )( ) go to work.

Pre (9) When I was a kid, I ( ) often go mountain climbing.

解説10.11.12　 I ( )( )( ) my nails when I am nervous.　噛まずにはいられません

解説10.11.12 I ( )( ) leave now, or I will be late for the meeting. ～した方が良い

解説10.11.12　( )( )( ) stay late at night.　夜更かししない方が良い。

解説10.11.12　 I ( ) thank you enough.　あなたに感謝してもしきれない

解説10.11.12　It started raining. We ( )( )( ) take a taxi home. ～するほうがよい

解説10.11.12 　We ( )( )( ) walk as wait.（待つよりも歩いた方がマシだ）

解説10.11.12 I ( )( ) quit my job than work with him.　彼と一緒に仕事をするよりも、仕事をやめたいです

Post1 (1) Janet is an honest person. She ( ) to you.

解説3.4＋　My son ( )( ) eaten fruits because he don't like them. 過去の可能性を否定

Pre (11) I ( ) sorry for him when I heard his story.

解説3.4＋　I ( )( ) seen you at office yesterday. I was sick in bed. 過去の可能性を否定

Pre (12) ( A : Let's go to Okinawa this summer. The beaches must be very beautiful. (B:I ( ) go somewhere cool.

解説8.9+ I told my son to study more, but he ( ) change his mind and he continued to watch smartphone. 拒絶

Post1 (3) He asked his daughter what happened, but she ( ) tell him.

解説10.11.12＋　息子に対して　You ( )( )( ) watch the smartphone now because you have played smartphone all the time. 「～しない方が良い」

Post1 (2) He has disappointed me a few times. You ( ) too much from him. 彼は何度か私をがっかりさせた. 彼にあまり期待しないほうがいいです。

Post1 (4) He couldn't get a plane ticket. He ( )the flight in advance.

解説6.7+　I couldn't apply for test because I didn't meet the deadline. I ( )( ) checked it earlier.(後悔）

Post1 (5) He was with his client in the meeting room then, so you (. ) him in the lobby.

解説3.4 He (. )(. )(. ) my computer because He didn’t know my computer password. (疑い：使ったことはずはない）

Post1 (7) (A : Do you know what happened to Jane? She was supposed to be here this morning. B : Her son suddenly ran a fever, so she ( ) him to the hospital.

解説1.2　I ( )( )( ) to my office to report my boss face to face. 行かなければいけなかった。

Post1 (6) A: Please don't tell anyone what I've just told you. It's between you and me. B: Don't worry. I ( ) anyone else.

解説8.9＋　I ( )( ) like heavy taste when I was young, but now I like light taste. 〜したものだ

Post1 (8) There ( ) be a lot of shops on this shopping street, but most of them are closed now.

Post1 (9) In spite of his leg injury, he (. ) win his tennis match last week.

Post1 (10) Your boss isn't going to change his attitude, so you (. ) get used to it. 上司は態度を変えようとしないので、慣れた方がいいかもしれません。

解説10.11.12 I can give some money from company if I pass the test, so I (. )(. )(. ) use it どうせなら、それを使った方がいい。

Post2 (1)-1 A:昨日誰がこの顧客からの電話を受けたか知っていますか。Do you know who ( ) the call from this customer yesterday?

Post2 (1)-2 B:よく分かりませんが、あなたの秘書かもしれませんよ。I’m not sure, but it ( ) ( )( ) your secretary

Post2 (1)-3 A:いいえ、私の秘書のはずがありません。彼女は昨日一日中外出していました。No, it ( ) ( )( ) my secretary. She was out all day yesterday.

Post2 (2)-1 A:遅かれ早かれ、彼女はあなたが嘘を言ったことに気づくでしょう。She (. ) notice that you told a lie sooner or later.

Post2 (2)-2 A:本当の事を話したほうがいいですよ。 You (. ) tell her a truth.

Post2 (2)-3 B: 言おうとしたのですが、言えませんでした。I was going to say that I (. ) say anything.

Post2 (3)-1 A:昨日は一日中課題のための調べものをしなければなりませんでした。I ( )( ) do some research for my task all day yesterday.

Post2 (2)-4 B:彼女はすっかり信じ込んでいるんです。あんなことを言わなければよかったです。(fall for) She completely falls for it. I (. )(. )(. ) such a thing.

Post2 (3)-2 A:もっと早く始めていればよかったです。I ( )( )( ) earlier.

Post2 (3)-3 B:疲れているでしょうね。課題は終えられたのですか。You ( ) be tired. Have you finished it?