－Myhometownhaschangedalot.－Soithas.Wespendmoretimethanw...

問題詳情：

－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

知識點：動詞和動詞短語

題型：選擇題