【題目】I want to know_________it's good news or not.

A. that B. whether C. though

【答案】B

【解析】

句意：我想知道是否它是一個好消息�？疾檫B詞用法。A. that引導(dǎo)賓語從句，無實意；B. whether是否；C. though雖然、盡管。根據(jù)I want to know____it's good news or not.可知，本題為賓語從句，由句意可知設(shè)空處意思為“是否”，whether和if翻譯為“是否”時一般可以互換，但是當(dāng)和or not連用是經(jīng)常用whether，whether…or not，是固定搭配，故答案選B。

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