题干
The floor is very dirty. Will you please ______?
A：mop it up
B：mop up it
C：to mop it up
D：to mop up it
答案(点此获取答案解析）
A
The floor is very dirty. Will you please ______?
A：mop it up
B：mop up it
C：to mop it up
D：to mop up it
