单项选择题

If you want to go to see a doctor , you'd better ______ ahead of time.

A．make an appointment
B．make an effort
C．make a promise
D．make a decision
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I can't forget the persons and the things ______ I met in my former company.
A．which
B．who
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Students in Class 3 ______ great progress in the past few months.
A． will make
B． made
C． have made D makes
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