—Whydon'tyoubuyacamera?—DoyouthinkIneedto？Myphoneisofte...

問題詳情：

—Why don't you buy a camera?

—Do you think I need to？My phone is often used ______ a camera.

A．by  B．for  C．as

【回答】

C

知識點：介詞和介詞短語

題型：選擇題