問題一覧
1
2
second
2
10
tenth
3
4
fourth
4
19
nineteenth
5
13
thirteenth
6
6
sixth
7
16
sixteenth
8
5
fifth
9
8
eighth
10
11
eleventh
11
9
ninth
12
18
eighteenth
13
14
fourteenth
14
17
seventeenth
15
15
fifteenth
16
1
first
17
12
twelfth
18
7
seventh
19
20
twentieth
20
3
third