Isn't it time you should get down to the papers? [ ] A. mark B. be marked C. bei
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![Isn't it time you should get down to the papers? [ ] A. mark B. be marked C. bei](/pic/43_868451.jpg)
Isn't it time you should get down to _________ the papers?
[]A.mark
B.be marked
C.being marked
D.marking
试题答案
答案:D
![Isn't it time you should get down to the papers? [ ] A. mark B. be marked C. bei](/pic/43_868451.jpg)
Isn't it time you should get down to _________ the papers?
[]A.mark
B.be marked
C.being marked
D.marking
答案:D