The floor is all wet .Please .A. cleans itB. cleanedC. mop up itD. mop it up

问题补充：

The floor is all wet .Please .

A. cleans it

B. cleaned

C. mop up it

D. mop it up

答案：

A. cleans it

B. cleaned

C. mop up it

(答案→)D. mop it up

解析：句意:地板都湿了。请用拖把把它弄干净。c lean 打扫；mop up 用拖把拖干净。根据句意可知，地板湿了，所以这里应该是用拖把拖干净。跟代词做宾语时，代词应放在mop 和up 之间。故选D。