题目内容
20、Hello! I you in Shanghai. How long have you been here?
A．don’t know, were B．haven’t known, are
C．didn’t know, were D．hadn’t known, are
试题答案
20、C
相关题目
Hello! I you in Shanghai. How long have you been here?
A．don’t know, were B．haven’t known, are
C．didn’t know, were D．hadn’t known, are
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