--Could you please _____ in the room? --Oh, I’m sorry.A．not smokingB．not smokeC．

题型：不详难度：来源：

--Could you please _____ in the room?
--Oh, I’m sorry.

A．not smoking

B．not smoke

C．not to smoke

D．don’t smoke

答案

解析

本题中情态动词could后应跟动词原形，否定形式只需在could后加not，或在主要谓语动词前加not，故本题选B。

举一反三

---Could we buy a piano, Jack?
---I’m afraid there ______ enough room for one in the house.

A．aren’t

B．are

C．isn’t

D．is

题型：不详难度：| 查看答案

She _______ a lot of money on clothes.

A．takes

B．costs

C．spends

D．buys

题型：不详难度：| 查看答案

The teacher encourages her students _____ English as much as possible.

A．to speak

B．speaking

C．speak

D．spoke

题型：不详难度：| 查看答案

The teacher said that they ______ hard-working students.

A．is

B．are

C．were

D．was

题型：不详难度：| 查看答案

—I am doing my homework . Will you please _________ your radio? It ‘s too noisy.
—Sure, I will.

A．turn off

B．go off

C．turn on

D．go on

题型：不详难度：| 查看答案