Sandy could do nothing but () to his teacher that she was wrong.
A. admit
B. admitted
C. admitting
D. to admit
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There are five pairs (), but I am at a loss which to buy.
A. to be chosen
B. to choose
C. to choose from
D. for choosing
The chairperson was the last one () the conference yesterday.
A. leaves
B. to leave
C. left
D. be leaving
Your are supposed () because the final exam is around the corner.
A. study hard
B. studying hard
C. to be studying hard
D. to sutdy hard
The mother had her son () the garage after the heavy snowstorm .
A. clean
B. to clean
C. cleaned
D. cleaning