I would have invited Doctor Fox to make a speech,but I__________ him very well．

A．hadn't known

B．don't know __________

C．wouldn't know

D．wasn't knowing

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参考答案

【参考译文】我本来是准备邀请Fox博士来做演讲的，但是我和他不是很熟。
【答案解析】本题考查虚拟语气与其他时态的混用。前半句用虚拟语气，本来想邀请，言外之意是没有邀请，只有主句，没有从句。后半句由but转折，其实是表示原因(我跟他不熟)，所以是描述一般的事实，只需要用一般现在时，所以选择B。

1 You need to know that __________ arrest is a crime in itself．

A．resisting

B．the resisting

C．resisted

D．to be resisted

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2 By 2016, the university __________ 10000 postgraduates．

A．enrolls

B．will be enrolling

C．will be enrolled

D．will have enrolled

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3 That´s the reason __________ Ann could not do her part of the job．

A．that

B．of

C．because

D．why

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