—Smartphonesaremoreandmorepopularnow.—Sotheyare.Butthey...

问题详情：

—Smart phones are more and more popular now.

—So they are. But they still ________ too much.

A. pay    B. cost     C. take    D. spend

【回答】

B

知识点：动词和动词短语

题型：选择题