it was three years ago_ i got to know him and since then we have been good friends.
题目
it was three years ago_ i got to know him and since then we have been good friends.
A when
B that
C before
D after
答案
B.强调句型.
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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