I"d like to go swimming ____ the water is not too cold.A．forB．unlessC．ifD．wheth

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I"d like to go swimming ____ the water is not too cold.

A．for

B．unless

C．if

D．whether

答案

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略

举一反三

Difficulties are nothing ___ we are not afraid of them.

A．for

B．as

C．if

D．whether

题型：不详难度：| 查看答案

The doctor will not perform the operation ___ it is absolutely necessary.

A．when

B．if

C．for

D．unless

题型：不详难度：| 查看答案

Go back ___ you came from.

A．until

B．where

C．which

D．when

题型：不详难度：| 查看答案

He lay ___ the grass was the thickest.

A．where

B．when

C．that

D．after

题型：不详难度：| 查看答案

You will find friendly people ___ you go in China.

A．where

B．and

C．wherever

D．so

题型：不详难度：| 查看答案

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