—Must I take the medicine every day?—No, you _______.A.must B.mustn’t C.need

题型：不详难度：来源：

—Must I take the medicine every day?
—No, you _______.
A.must B.mustn’t C.needn’t

答案

解析

试题分析：句意：我每天都必须吃药吗？不，你不需要。must提问，否定回答用need’t，故选C
点评：情态动词用法较多，无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not"。个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去，现在或将来。must 提问的肯定回答用mustn’t.

举一反三

---There is somebody knocking at the door. Who________ it be?
---I’m not sure. It ________ be a postman.

A．may; must

B．will; can

C．can; may

D．may; will

题型：不详难度：| 查看答案

—Must I buy lunch at school?
—No, you needn’t. You __________ bring your own lunch if you want to.

A．should

B．must

C．will

D．can

题型：不详难度：| 查看答案

—Look! A book is on the floor. Whose is it?
—It ______ be Rick’s. It has his name on it.

A．mustn’t

B．can’t

C．must

D．need

题型：不详难度：| 查看答案

It’s time _____ class. You must _____ the classroom.

A．to; to go

B．for; go to

C．to; to go

D．for; to go

题型：不详难度：| 查看答案

——Dad, must I finish my homework today?
——No, you . You may do it tomorrow.

A．needn’t

B．mustn’t

C．don’t

D．won’t

题型：不详难度：| 查看答案