---Listen! The fire engine is roaring! (消防车吼叫) --- Oh, there ______ be a fire so

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---Listen! The fire engine is roaring! (消防车吼叫)
--- Oh, there ______ be a fire somewhere. How terrible!

A．should

B．must

C．have to

D．will

答案

解析

情态动词辨析。A. 应该 B. 必须；一定 C. 必须；不得不 D.愿意。句意：听！消防车正在鸣叫。——哦，一定是有地方发生火灾了。太可怕了。Must强调主观判断的肯定，have to强调由于客观情况的被动动作，结合语境可知选B。

举一反三

. You __________ a taxi, for it was only about ten minutes’ walk to the station from the hotel.

A．mustn’t have taken;

B．mightn’t have taken;

C．needn’t have taken;

D．couldn’t have taken;

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.Mary is so wet. She _______ in the rain.

A．must be caught	B．must have been caught
C．should have been caught	D．can have been caught

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----- Do you want him to lend you some money?
----- I wish he _________.

A．should

B．would

C．will

D．had

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—_________ I have a look at your new MP3?
Certainly. Here you are.

A．Must

B． Need

C．May

D．Would

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He insisted that he _____ the best, so he insisted that he _____ the work all by himself.

A．was; do

B．be; do

C．be; did

D．had been; had done

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