单项选择题

There is no point（）about the poor working condition here.

A、 in complaining
B 、to complain
C、 of complaining
D、 complain

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单项选择题
His parents asked him to buy books（）he found useful and necessary for his study.

A、 whichever
B 、whatever
C、 whenever
D、 however
单项选择题
In earlier days, local trade was（）more important.

A、 many
B 、very
C、 much
D、 too
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