【題目】I don’t know _____ he will come. ____ he comes, I will tell you.

A.whether; WhetherB.if; IfC.if; WhetherD.that; If

【答案】B

【解析】

句意：我不知道他是否會來。如果他來了，我就會告訴你。

考查賓語從句和條件狀語從句。whether是否；if如果；是否；that那個。前一句是賓語從句，根據(jù)…h(huán)e comes, I will tell you.可知我并不知道他是否會來，用whether或if都可以。第二句是條件狀語從句，主將從現(xiàn)，用if引導(dǎo)。故選B。

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