Nobody knows for sure how dinosaurs died out 65,000,000 years ago. It _______ be - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

Nobody knows for sure how dinosaurs died out 65,000,000 years ago. It _______ because of sudden changes of their living conditions.

A．must have happened	B．would have happened
C．should have happened	D．might have happened

答案

解析

试题分析：句意：没有人确切的知道56，000，000年前是怎么死的。有可能是因为它们生活环境的突然的改变。因为是Nobody knows，所以只是对过去的不确定的推测，用might have done过去可能做了…，must havedone过去一定做了，should have done过去本应该做...would have done过去本来会做…，选D。

核心考点

试题【Nobody knows for sure how dinosaurs died out 65,000,000 years ago. It _______ be】；主要考察你对动词的分类等知识点的理解。[详细]

举一反三

---- ________ you spoil everything, Kevin?
---- Please don’t get me wrong. I just want to help and I am a good man and I ….

A．Must

B．May

C．Can

D．Will

题型：不详难度：| 查看答案

Cheating is strictly forbidden in this important exam, and students ______ bring any reference books into their classrooms, cell phones included.

A．will not

B．should not

C．mustn’t

D．need not

题型：不详难度：| 查看答案

– Amazing! You _____ have won the first prize in the national English speech contest!
– I’m lucky that all my efforts have finally paid off.

A．must

B．may

C．can

D．should

题型：不详难度：| 查看答案

-- I can’t believe that Jeff _______ have quarreled and fought with his boss.
-- Well, if one _______ ask for trouble, it just can’t be helped.

A．would; will

B．must; may

C．should; must

D．need; dare

题型：不详难度：| 查看答案

—Send me an email when you are free, will you?
—________.

A．I must　　

B．I will　　

C．I can　　

D．I should

题型：不详难度：| 查看答案

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