We don't know ______ to deal with the problem. We'll ask Mr. Wang for help.A．wha_刷题宝

题干

We don't know ______ to deal with the problem. We'll ask Mr. Wang for help.

A．what

B．how

C．why

D．where

上一题下一题 0.65难度单选题更新时间:2019-01-03 03:02:13

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