单项选择题

I'm very sorry ______ the whole morning. I forgot the appointment.

A．to keep you wait
B．to have kept you waiting
C．to keep you waiting
D．to keep you to wait
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单项选择题
I wondered ______ to come to the party.
A．whether he should have been asked
B．whether he should asked
C．whether he was asked
D．should he been asked
单项选择题
He used to get up late, ______
A．did not he
B．did he
C．didn't he
D．use he
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