人教新教材必修第三册Unit5 情态助动词练习（二） 推测用法 50题

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情态助动词专项练习（二） 推测用法
用括号内所给动词的正确形式完成下面的句子。
1. Helen ______ (go) on the trip with us, but she isn’t quite sure yet.
Keys: might go★
2. He ______ (complete) his work; Otherwise, he wouldn’t be enjoying himself by the seaside.
Keys: must have completed★
3. — I’ve taken someone else’s green sweater by mistake.
— It ______ (be) Harry’s. He always wears green.
Keys: could be★
4. — Do you know where David is? I couldn’t find him anywhere.
—Well. He ______ (go) far — his coat’s still here.
Keys: can’t have gone★
5. — The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear! She ______ (go) through a lot of difficulties!
Keys: must have gone★
6. — Tom is never late for work. Why is he absent today?
— Something ______ (happen) to him.
Keys: must have happened★★
7. This cake is very sweet. You ______ (put) a lot of sugar in it.
Keys: must have put★
8. He paid for a seat, when he ______ (enter) free.
Keys: could have entered★★
9. There ______ (be) any difficulty about passing the road test since you have practised a lot in the driving school.
Keys: shouldn’t be★★
10. I ______ (be) more than six years old when the accident happened.
Keys: couldn’t have been★
11. The World Wide Web is sometimes jokingly called the World Wait because it ______ (be) very slow.
Keys: can be★
12. I was on the highway when this car went past followed by a police car. They ______ (do) at least 150
kilometers an hour.
Keys: must have been doing★★
13. There’s no light on, they ______ (be) at home.
Keys: can’t be★
14. Black holes ______ (not see) directly, so determining the number of them is a tough task.
Keys: can’t be seen★
15. —Is Jack on duty today?
—It ______ (be) him. It’s his turn tomorrow.
Keys: can’t be★
16. We ______ (not have) great adventurers, but we have done the greatest march ever made in the past ten years.
Keys: may/might not have proved★
17. The teacher ______ (think) Johnson was worth it or she wouldn't have wasted time on him, I suppose.
Keys: must have thought★★
18.— She looks very happy. She ______ (pass) the exam.
— I guess so. It’s not difficult after all.
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人教新教材必修第三册Unit5 情态助动词练习（二） 推测用法 50题.docx

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作者：envi 分类：初中 价格：3知币 属性：3 页 大小：18.29KB 格式：DOCX 时间：2025-02-26

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