题目内容
— The floor is clean and dry now. Who _______?
— Sorry, I don’t know.
- A.mopped it up
- B.has mopped it up
- C.has mopped up it
- D.mopped up it
B
从题意来讲,本题需要的是现在完成时,而mop ..up 为动词+adv词组,若宾语为人称代词时,位于中间,故选B
从题意来讲,本题需要的是现在完成时,而mop ..up 为动词+adv词组,若宾语为人称代词时,位于中间,故选B
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