— I want someone to write the composition for me. 　— No! It’s a rule in our scho

题型：不详难度：来源：

— I want someone to write the composition for me.
　— No! It’s a rule in our school that as a student, you _______ depend on yourself.

A．shall

B．will

C．can

D．should

答案

解析

本题考查的是情态动词的选用。首先，由题意可知you depend on yourself是学校的规则（rule），而四个选项中，只有shall作情态动词才可表示法律、规章制度下的“必须”，由此可知答案为A

举一反三

— I haven’t got the reference book yet, but I’ll have a test on the subject next month.
— Don’t worry. You ________ have it by Friday.

A．could

B．shall

C．may

D．must

题型：不详难度：| 查看答案

I was really anxious about you. You _______ home without a word．

A．mustn’t leave	B．shouldn’t have left
C．couldn’t have left	D．needn’t leave

题型：不详难度：| 查看答案

I ______ her, but I never could.

A．ought to help	B．must help
C．ought to have helped	D．must have helped

题型：不详难度：| 查看答案

—Hi, Johnson, any idea where Susan is?
—It"s class time, so she in the classroom now.

A．can be

B．must have been

C．might have been

D．should be

题型：不详难度：| 查看答案

Mary __________ the job he offered to her, but she didn’t.

A．can’t take

B．ought to have taken

C．should take

D．must have taken

题型：不详难度：| 查看答案