II.单项选择(共15小题；每小题1分；满分15分)
21. ---Do you have trouble if you _______this job?
---I’m thinking about the salary.
A. offer B. will offer C. are offered C. will be offered
22. My friend who____ in the school all his life is retiring next month.
A. served B. is serving C. had served D. has served
