the math teacher gave us some exercises and asked us ______选哪个,为什么?

the math teacher gave us some exercises and asked us ______选哪个,为什么?
the math teacher gave us some exercises and asked us ______
A. to work them onB. working them on C. to work on them D. working on them
英语人气:720 ℃时间:2019-09-20 06:30:14
优质解答
C: to work on themwhy?
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