单项选择题


A．There was
B．There is
C．It's
D．It was
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单项选择题
A．didn't meetB．haven't metC．didn't knowD．haven' t known
A．didn't meet
B．haven't met
C．didn't know
D．haven' t known
单项选择题
A．I have left the homeB．I leave from homeC．leaving homeD．to leave home
A．I have left the home
B．I leave from home
C．leaving home
D．to leave home
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