audience
| A．laugh | B．fault | C．aunt | D．restaurant |
－I didn’t know you were good friends.
－You ______. I have known her since she moved here. You were studying abroad then.
| A．may have | B．needn’t have | C．couldn’t have | D．must have |
.－Is there any flight to Tokyo today?
－I think there ______, for the weather is too bad.
| A．mustn’t | B．mightn’t be | C．needn’t be | D．can’t be |
Research findings show we spend about two hours dreaming every night, no matter what we ______ during the day.
| A．should have done | B．would have done |
| C．may have done | D．must have done |
－I went to work on foot yesterday, though it ______ cats and dogs.
－You ______ by bus. It was likely to get a cold.
| A．is raining; must have gone | B．rained; would go |
| C．was raining; should have gone | D．have rained; could have gone |
.－How about paying a visit to Mr. Richardson, our former history teacher?
－Good idea. I will e-mail him today so he ______ know ______ to expect us.
| A．shall; why | B．may; when | C．would; why | D．will; how |