A moment, please．I’m checking if Mr. Smith _________ free tomorrow．A．isB．beingC．

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A moment, please．I’m checking if Mr. Smith _________ free tomorrow．

A．is

B．being

C．to be

D．will be

答案

解析

考查从句知识。If作“如果”讲，引导条件状语从句，从句用一般现在时；作“是否”讲，引导宾语从句，从句时态不受限制，根据具体情况来定。句意“请稍等，我正在确认史密斯先生明天是否有空。”根据tomorrow可知，用一般将来时。故选D。

举一反三

The shop ________ at 8:00 a.m. and it ________ for ten hours every day.

A．opens; is open	B．is opened; opens
C．is open; has opened	D．opened; opens

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— Have you ever been anywhere for a trip?
— A trip? I ________ away from my hometown even once.

A．went

B．have gone

C．have been

D．have never been

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The World Expo (世博会) ____________ in Shanghai now.

A．being had

B．is having

C．is holding

D．is being held

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--Hello! May I speak to Kate?
--Sorry, she isn’t here now. She __________to Shanghai.
A. went B. has been C. has gone

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The door is __________.Who ______ it?

A．open; opened

B．open; open

C．close; closed

D．closed, close

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