--Why don’t you buy the necklace since you like it so much?

   --I____, but I don’t have the money.

A. would           B. will               C. should            D. may

 We won’t know how much food to buy until we decide how many people ________.

A. were coming     B. are coming         C. have been coming  D. had come

 The crazy fans patiently for two hours, and they would wait till the movie star arrived.

A. were waiting    B. had been waiting  C. had waited      D. would wait

 —Why don’t we choose that road to save time?  

  —The bridge to it __________.  

A. has repaired    B. is repaired        C. is being repaired   D. will be repaired

 By the end of last year, another new theme park  completed in that area.

A. was being       B. would be           C. has been          D. had been

 I’m afraid I _____ you with too many questions. Thank you a lot, sir.

A. will bother     B. have to bother     C. would bother      D. have bothered

 Sales of CDs have greatly increased since the early 1990s, when people _____to enjoy the advantages of this new technology.

A. begin           B. began             C. have begun      D. had begun

 —Betty promised me to come round to keep you company today.

  — But she _______. I’ve been alone all day.

A. won't           B. hadn't             C. hasn't            D. doesn't

 What do you think the children when we get home?

A. are doing       B. will be doing      C. do                D. have d6ne

 The telephone _______, but by the time I got indoors, it stopped.

A. had rung        B. was ringing        C. rings             D. has rung