Question

【题目】He hit a pipe and filled the room with water.Let’s ____________right away.

A. to mop up it B. to mop it up C. mop it up D. mop up it

Answer 1

【答案】C

【解析】句意：他弄坏了水管，满屋子都是水，让我们马上把它擦干净。Let’s后跟动词原形，首先排除A,B答案；mop up为动副词组，代词放在中间，故答案为C。