【題目】--- Why didn't they stop doing that?

--- Because they were unaware of the danger around them.

A. don't guess B. don’t realize C. don't hope

【答案】B

【解析】

句意：“-為什么不停下來呢？-因為他們沒有意識到周圍的危險”，“were unaware of不知道”，A. don't guess不要猜測；B. don’t realize沒意識到C. don't hope不要希望；結(jié)合句意，故選：B。

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