Allen has decided that he will be an engineer by the time he ________ twenty.A．h

题型：不详难度：来源：

Allen has decided that he will be an engineer by the time he ________ twenty.

A．had been	B．is going to be
C．will be	D．is

答案

解析

答案：D　考查考生对题干和动词时态的理解及掌握情况。句中by the time相当于when，用来引出时间状语从句，从句中需用一般现在时表将来，故选D。

举一反三

I can"t understand why he ________ so selfish. He isn"t usually like that.

A．was	B．had been
C．is	D．is being

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This is a promising company as its employees ________ to think outside the box and develop creative solutions.

A．encourage	B．have encouraged
C．were encouraged	D．are encouraged

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Up to now, thousands of red phone boxes, the old image of Britain, ________ due to mobile phones.

A．removed	B．have removed
C．were removed	D．have been removed

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When I ________ home, I caught a thief stealing from a passerby.

A．headed	B．was heading
C．has headed	D．had headed

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—How long on earth shall I have to wait?
—Sorry, sir. Just a minute. There ________ a table available.

A．is	B．was
C．will be	D．has been

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