单项选择—HowaboutbuyinganiPhone4sforyourmother’sbirthday?—O...

问题详情：

单项选择

— How about buying an iPhone 4s for your mother’s birthday?

— Oh, maybe it’s too expensive, Dad. Do you know _______?

A. how much does it cost    B. how much it costs

C. how much it cost            D. how much did it cost

【回答】

B

【解析】本题是特殊疑问句作宾语从句，要用陈述句语序。故选B

知识点：宾语从句

题型：选择题