_________his teacher, Li Ming wouldn't have passed the Englishexam so easily.
| A．If it hadn't been | B．Hadn't it been |
| C．Had it not been for | D．Were it not for |
―What about 10 o’clock tomorrow morning?
―I’m afraid I can’t make it. I _________ then.
| A．am going to take an exam | B．am taking an exam |
| C．will be taking an exam | D．an to take an exam |
―Do you have anything to do this afternoon?
―What’s up?
―Let’s go shopping. It’s said that Jinying Shop ______, and all the sweaters are sold at half price.
―Why not?
| A．has closed down | B．was closing down |
| C．closes down | D．is closing down |
Hello. You 68442936. I’m sorry I’m unable to answer your call right now.
| A．reached | B．are reaching | C．have reached | D．had reached |
It seems oil _____from this pipe for some time, we’ll have to take the machine apart to put it right.
| A．had leaked | B．is leaking | C．leaked | D．has been leaking |
—Why were you not at the concert?
—I________ a close game between two European football teams.
| A．watched | B．had watched | C．was watching | D．have been watching |