III.
4. can, was
5. prepares
6. eat
7. Do ... sit
8. are
9. forgets
10. play
IV.
do: aerobics, logging, housework, homework
go: camping, shopping, fishing, swimming, cycling
play: soccer, badminton, tennis, table tennis, volleyball, video games
V.
1.B
2.B
3.B
4.D
5.B
6.B
7.B
8.D
9.A
10.B
11.A
12.A
13.D
14.B
15.D