23. The engineer _________ ____________ (同意) the worker.

22. The engineer _________ ____________ (同意) the worker’s idea.

21. A short while __________(之前), my sister helped me to carry one of my old bookcases up the stairs.

18. again and again　 19. against　 　20. ages

11. add　 12. address　 13. afraid　 14. afraid of　 15. after　 16. after　　 17. this afternoon　

20. I haven't seen her for a______________ (很长时间).

19. Please put the ladder _____________(靠在) the wall.

18. The singer sang the song _________ ________ ____________(一遍又一遍).

17. There will be a meeting _______ ______________ (今天下午).

16. I'll call him __________(…以后) I get to the school.