单项选择题

Some students like staying up Date into the night,（）their lessons for the coming final examination.

A．to prepare
B．prepare
C．preparing
D．were preparing

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单项选择题
Did you have trouble （） the swimming pool.

A．to have found
B．to find
C．with
D．in finding
单项选择题
I regret（）you the sad news since you are now in so deep sorrow.

A．to tell
B．telling
C．being told
D．tell
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