Busy _____ he was, he tried his best to help you.A．asB．whenC．sinceD．for

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Busy _____ he was, he tried his best to help you.

A．as

B．when

C．since

D．for

答案

解析

略

举一反三

I learned a little Russian _____ I was at middle school.

A．though

B．although

C．as if

D．when

题型：不详难度：| 查看答案

_____ we got to the station, the train had left already.

A．If

B．Unless

C．Since

D．When

题型：不详难度：| 查看答案

_____ the rain stops, we" 11 set off for the station.

A．Before

B．Unless

C．As soon as

D．Though

题型：不详难度：| 查看答案

She was _____ tired _____ she could not move an inch.

A．so, that

B．such, that

C．very, that

D．so, as

题型：不详难度：| 查看答案

We didn’t go home _____ we finished the work.

A．since

B．until

C．because

D．though

题型：不详难度：| 查看答案

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