—There"s someone knocking on the door．Who it be?—It must be Mary．She prom - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

—There"s someone knocking on the door．Who it be?
—It must be Mary．She promised to be here at 8：00．

A．must

B．can

C．shall

D．need

答案

解析

试题分析：句意：--有人在敲门。可能会是谁呢？--一定是Mary。她答应八点钟到这里。A. must一定，表主观肯定推测；B. need需要；C. shall将会是；D. can可能，表示怀疑、猜测、惊异（主要用于否定句或疑问句中）。故选B
考点: 考查情态动词的用法。

核心考点

试题【—There"s someone knocking on the door．Who it be?—It must be Mary．She prom】；主要考察你对动词的分类等知识点的理解。[详细]

举一反三

—Can I pay the bill by check?
—Sorry，sir．But it"s the management rules of our hotel that payment be made in cash．

A．shall

B．need

C．will

D．can

题型：不详难度：| 查看答案

It be the vocabulary that caused you the problem in the exercise because you know a lot of words.

A．couldn^’t

B．may

C．should

D．needn^’t

题型：不详难度：| 查看答案

—I heard they went skiing in the mountains last winter.
—It true because there was little snow there.

A．may be not

B．won’t be

C．couldn’t be

D．mustn’t be

题型：不详难度：| 查看答案

—Who bought you the fresh flower?
—It’s from my girlfriend, if you ______ know.

A．have to

B．must

C．will

D．might

题型：不详难度：| 查看答案

I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house.

A．mustn’t

B．needn’t

C．shouldn’t

D．couldn’t

题型：不详难度：| 查看答案

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