30.Look! The children 　　　　　(swim) in the river.

29.Please tell jim 　　　　　(not read) in the sun.

28.They 　　　　　(not watch) TV until they finished their homework.

27.We’ll go to the Great Wall if it 　　　　　(not rain) tomorrow.

26.“　　　 　(be) everyone here today?”“Yes.We’re all here.”

25.He worked out the difficult exercises so quickly that we were filled with 　　　　　(admire).

24.Mr Wang always practice 　　　　　(play) table tennis after lunch.

23.Don’t believe others easily.We’d better think for 　　　　　(we).

22.We study in a 　　　　　(mix) school.There are boys and girls in the schoolyard.

21.They gave their 　　　　　(life) to their people.