It is necessary that the plan__________before Thursday．

A．were fulfilled

B．was fulfilled

C．be fulfilled

D．would be fulfilled

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参考答案

句型It is neccessary that…+(should)+V(动词原形)…表示“……是必须的”。句意为这个计划必须在周四前完成。因此答案为C。

1 You__________all those calculations!We have a computer to do that sort of thin9．

A．needn’t have done

B．must not have done

C．shouldn’t have done

D．could not have done

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2 At last the girl received the letter she__________for so long a time．

A．has been expecting

B．had been expecting

C．was expecting

D．had excepted

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3 She told her children that they must not__________play with matches．

A．by no means

B．in no sense

C．on any account

D．to good account

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