题目内容：

During the holidays__people go to Shanghai for sightseeing.Atwo million of Btwo millions
C.millons of Dmillion of

优质解答

答案选C.millons of 成千上万的...；无数的...

追问：

It takes Mary an honr to get to school every day.(an honr 划线部分提问)

追答：

How long does it take Mary to get to school every day?