Don’t be afraid of asking for informati...

Don’t be afraid of asking for information ______it is needed.

A．when

B．after

C．although

D．unless

A 【解析】本题主要考查连词辨析，after在...之后；athough虽然；unless="if" not除非；when 当...时候，根据题意故选A

考点分析：

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