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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单项选择题
The boy had no choice but（）the truth.

A．to tell
B．tell
C．telling
D．told
单项选择题
I can't forget the persons and the things（）I met in my former company.

A．which
B．who
C．that
D．what
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