I.
1, A
2, C
II.
1, D
2, B
III.
1, D
2, C
3, A
4, D
5, A
6, C
7, A
8, B
9, D
10, B
11, C
12, B
IV.
1, -> How about buying some oranges ?
2, -> I ought to finish this question for Math tomorrow
3, You should listen careful -> carefully to your teacher