When we express regret, we often use the phrases could have, should have, or would have in our sentences to explain how things might have been different if something other than what happened had occurred. These terms are fairly straightforward in their definition and use, but for English ...
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肯定:must/may/might + have been否定:can/could + not + have been/done 疑问:Can/Could + sb. + have been/have done 注意:表示推测(可能性从大到小):must,can,could,may,might。 They might have finished the work by now. Exercises:(A)相关...
·If he had time, he would attend themeeting. (fact: He does not have time, so he will not attend the meeting.)·If they didn’t take physical exercisesevery day, they wouldn’t be so healthy. (fact: They take physical exercisesevery day, so they are very healthy.)·If...
A.would B.should C.could D.might2.If we the other road, we might have arrive d here in time for the meeting. A.take B. h a d taken C.took D. have taken3. If you har d before, you a college student now. A. h a d studied: woul d have been B. h a d studied; woul ...
If I were you, I’d have a first-aid….. 此句使用了虚拟语气,对现在的事情进行假设,表示与现在事实相反的一种假设。 此时,主句中谓语动词使用“should / would + v 原形”的结构。If 从句中谓语 动词使用一般过去时态,如果该动词是 be 动词,则一律用 were. 例:If I knew this, I ...
He must have a car now. （现在）他一定有辆小汽车。He must be doing his exercises in the classroom.（正在进行）他一定在教室里做练习。He must have finished the work.（过去发生）他一定已完成了工作。 注：must表示推测时很少用于将来的情况。一般不用He must come tomorrow.可用It`s ce...
+ have + done(动词过去分词) →“准是/肯定已经做了某事”，表示对过去发生事情的肯定推测。There is nobody here---they must have gone home.这儿没人 ---他们准是已经回家了。若是否定推测，则用can not (can't)，“不可能、一定不是”He can't be a policeman.他不可能是警察。
超星尔雅学习通《大学英语口语》2021章节测试含答案 1.1Part 1 Phonetics: Vowels 1、根据发音规则,找出以下单词中划线部分发音不同的1个单词。 A、sofa B、sit C、kick D、lip 正确答案:A 2、根据发音规则,找出下列每组词中发[?]音的1个单词。 A、rat B、bed C、face D、sport 正确答案:A 3、根据发音规...
Little Six didn't have a strong body,(6) he had a strong will.He decided (7) he would get stronger.He would do exercises and flap(拍动) his wings every day. Every morning,Little Six would rise (8) the sun even came up.When his brother sand sisters woke,Little Si...