000 people have been infected in China while more than 2,000 people have died. The COVID-19 is not only highly infectious, but can also hide for long in patients, making di...
如:Electric irons could be dangerous; they might give you a severe shock.电熨斗会有危险,它可能电着人。 ⒊ may (might) + have +done 表示对过去发生行为的推测,含有“想必”、“...
成人高考学位英语备考练习:非谓语动词 一、不定式 (一)基本结构 to do to be doing to have done to be done to have been done 学位英语真题汇编 1、Judging from his manners at the party, he does
could have done "本来可以……"(表示过去没有实现的可能)。 might have done "本来可能……;本来应该或可以做某事"(实际没有发生;含有轻微的责备语气。 should/ought to have done "本来该做某事"(而实际未做) should not/ought not to have done "本来不该做"(实际...
A. not to do B. not to be done C. not to have done D. not having done 3、I' m sorry I couldn't get in touch with him before he left, I ___ him earlier. A. had a telephone B. have phoned C. should have phoned D. should be phoned 4、He...
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