问题
选择题
We have to study _____our English test and we are busy ________what we learnt. [ ]
A. at, review
B. for, reviewing
C. on, reviewing
D. for, review
答案
答案：B
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We have to study _____our English test and we are busy ________what we learnt. [ ]
A. at, review
B. for, reviewing
C. on, reviewing
D. for, review
答案：B