【題目】I don’t know he’ll come. I will let you know he comes.

A.if; whetherB.whether; whetherC.if; ifD.whether; that

【答案】C

【解析】

句意:我不知道他是否會(huì)來(lái),如果他來(lái)了,我會(huì)讓你知道。

考查賓語(yǔ)從句和狀語(yǔ)從句中ifwhether用法。if如果,是否;whether是否。第一句為賓語(yǔ)從句,連接詞可用ifwhether,表“是否”;第二句考查條件狀語(yǔ)從句,符合主將從現(xiàn)的原則。只能由if引導(dǎo)。故選C

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