－Myhometownhaschangedalot.－Soithas.Wespendmoretimethanw...

问题详情：

－My hometown has changed a lot.

－So it has. We spend more time than we used to        it up.

A. clean        B. cleaning      C. cleaned       D. cleans

【回答】

B

知识点：动词和动词短语

题型：选择题