Jean did not have time to go to the concert last night because she was busy _______ for her examination.
A. being prepared
B. preparing
C. prepare
D. to prepare
I would appreciate ______ it a secret.
A. keep
B. to keep
C. your keeping
D. that you keep
How about the two of us ______ some tea in the garden?
A. to drink
B. drink
C. drinking
D. drank
The old man is weak, so he has to use a ______ stick to support him.
A. walk
B. to walk
C. walking
D. walked
微信支付 
支付宝支付