单项选择题

Jean did not have time to go to the concert last night because she was busy ______ for her history examination.

A. to prepare
B. preparing
C. to be prepared
D. being prepared
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单项选择题
He offered to （） her a hand as the bag was too heavy for her to carry.

A. lend
B. help
C. show
D. borrow
单项选择题
They told me it would be cheap but ______ it cost me nearly ＄500.
A. in general
B. in a word
C. in detail
D. in fact
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