19. Who is speaking ? / Who”s that (it)? / Who should I say called?

18. Hold on, please. / Wait a moment (minute).

17. Can I help you? / Can I take a message for him?

16. Is Jim in (at home)? / May (Can / Could) I speak to Jim?

15. How long does it take him to play / How long does he spend (in) playing computer games every day?

14. Why not ask for some help when you are in trouble?

13. It”s good to eat more vegetables.

12. The students didn”t go home until the rain stopped.

11. I don”t think (that) he will come.

9. doesn”t do 10. be looked after

(二)完成句子(共5分，每小题1分)