题目内容

What happened?

Ohthe street is       We have to go another way

Ablocked out             Bblocked off

Cblocked down              Dblocked in

 

答案:B
解析:

block sth.off为“(用障碍物)隔开”;block down无此词组.block sth.in/out为“画某物的草图,定某事物的计划”。

 


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