Because all the roads leading to the mountain village ( )
题目
Because all the roads leading to the mountain village ( )
the rescue workers were not able to reach it to help.
A.were blocked
B.are blocked
C.have been blocked
D.had been blocked
为什么用一般过去时不用现在完成时
答案
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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