问题
The floor is wet. Who’s going to ___________ ?
A:mop up it
B:mop up them
C:mop it up
D:mop them up
B:mop up them
C:mop it up
D:mop them up
正确答案是:
同类题型
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Mr Wang has worked as _______ English teacher for more than 10 years.
Look at the girl in the red skirt. ______is my new classmate.
Trees ____ fight air pollution.They are natural air conditioners.