20.To save trouble,you ________ as well preview the product online before you place an order.(  )
A.canB.shouldC.mayD.need

分析 為了免去麻煩,你不妨在下訂單前在網(wǎng)上預覽一下產(chǎn)品.

解答 答案是C.本題考查情態(tài)動詞may的用法;情態(tài)動詞may常常用在"may/might as well"短語中表示"不妨,還是…的好";根據(jù)語境,你"不妨"在網(wǎng)上預覽產(chǎn)品,故選C.

點評 要在正確理解情態(tài)動詞的基本含義的基礎(chǔ)上,整體理解語境中的情感態(tài)度,做出合理的判斷.

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