单项选择题

Many things have happened ______ I saw you.

A) when
B) before
C) since
D) for
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单项选择题
What do we learn about the man（）

A．He is ill.
B．He will go to the party.
C．He will see a doctor.
D．He is going to see Hilda.
单项选择题
What can we learn about the man’s experiment（）

A．It is going on well.
B．It has failed several times.
C．It will soon be finished.
D．It may have to be stopped.
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