7.---Mary, you didn’t show up at the meeting last week?
---No, I________, but my son had a sudden fever and I had to stay at home to take care of him.
| A．didn’t | B．was going to | C．had to | D．wouldn’t |
—He didn’t feel a bit nervous when ________.
—No. He’d had a lot of time ________ for it after all.
| A．interviewing; to prepare | B．interviewed; to prepare |
C．interviewing; preparing | D．being interviewed; preparing |
How long do you think _________ the computer company launches a new model?
| A．it will be before | B．will it be until | C．will it be when | D．it will be that |
Miss Li _ as a secretary for five years in the company, and now she is general manager of it.
| A．serves | B．served | C．had served | D．has served |
Though a typhoon is on the way, people are still looking forward _________ the outdoor 
concert by the pop singer.
| A．to canceling | B．not to canceling | C．not to cancel | D．to not canceling |
－Mary, how did your Math test go?
－I had thought I _________, but in fact I came in the top 10% in my class.
| A．should have failed | B．couldn’t have failed |
C．might have failed | D．shouldn’t have failed |