情态动词练习题

1.[2017·北京卷] Samuel, the tallest boy in our class, ________easily reach the books on the top shelf.

2.[2015·湖南卷] Remember, however, that you should usually consult different types of sources. That is, you ________always rely just on the Internet for your research.

3.[2016·北京卷变式] I love the weekend, because I ________get up early on Saturdays and Sundays.

4.We must found ways to protect the environment. If we fail to do so, we'll live to regret it.

5.He _______have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.

6.Traffic safety is related to thousands of households. We _______stress the importance of it enough.

7.You'd better not ride the bicycle on snowy days; you _______fall.

8.You ______________________(wake) me up;I don’t have to go to work today.

9.The ground is rather wet, so it _______ have rained last night, didn’t it?

10.Tom ____ have gone to Shanghai, but I’m still not sure about it.

11.The ground is very dry, so it _____ have rained last night.

12.Someone must have broken into our bedroom. Who ________ have done it?

13.I really regretted wasting the hours when I ______ have studied hard, but it was too late.

14.When I lived with my roommates in the university，we ________ often talk into the night.

15.Students ______ remain in their seats until all the papers have been collected.

16.—Why does Thomas speak through every discussion but never listen to the others?

That's what he ______ do.We used to hate that，but are used to it now.

17.Brain，like muscles，also needs some kind of exercise and nutrition.The more you use your brain in the right direction，the more you ______ enhance your ability.

18.—David is often absent from class.

—Tell him he ______ answer for it if he goes on behaving like that.

19.—Nowadays children have more freedom.

—I agree.They ______ do what they like.

20.She often shares her deepest thoughts and fears with friends through QQ，as if they ______(be) chatting in her living room.

21.Oh，I'm not feeling well in the stomach.I ________(not eat) so much fried chicken just now.

22.—Where did you get this book?

—I picked it up from a second-hand bookshop if you ________ know.

23.Since nobody gave him any help, he________have done the research on his own.

24.—Why are your eyes so red? You ________have slept well last night.

—Yeah，I stayed up late writing a report.

25.He________sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.

26.It________be the vocabulary that caused you the problem in the exercise because you know a lot of words.

27.—What are you doing this Saturday?

—I'm not sure，but I________go to the Rolling Stones concert.

28.When I was a child, I ________ watch TV whenever I wanted to.

—You needn't take an umbrella. It isn't going to rain.