_)I had not believed in falling in love with somebody at first sight_______I met

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_)I had not believed in falling in love with somebody at first sight_______I met David on Valentine’s Day three years ago.

A．when

B．unless

C．if

D．before

答案

解析

考查连词。before引导时间状语从句。

举一反三

_A container weighs more after air is put in, ____proves that air has weight.

A．as

B．it

C．that

D．which

题型：不详难度：| 查看答案

_ Finding a job in such a big company has always been_______ his widest dreams.

A．under

B．over

C．above

D．beyond

题型：不详难度：| 查看答案

_You must get up early in the morning, ______we’ll have to leave without you.

A．and

B．but

C．or

D．so

题型：不详难度：| 查看答案

_The work is easy for an expert _______it is difficult for an inexperienced person.

A．because	B．therefore
C．while	D．unless

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_You’d better take something to read when you go to see the doctor_______ you have to wait.

A．even if

B．in case

C．as if

D．in order that

题型：不详难度：| 查看答案