15.It doesn't matter _________you turn right or left at the crossing---both roads lead to the park.( 。
A.whetherB.howC.ifD.when

分析 句意:你在十路口向右拐還是向左拐都沒(méi)關(guān)系--兩條路都可以到達(dá)公園.

解答 答案:A 此題考查主語(yǔ)從句.It是形式主語(yǔ),真正的主語(yǔ)是whether引導(dǎo)的從句.和or連用時(shí),用whether引導(dǎo)主語(yǔ)從句.if作"是否"講時(shí),不引導(dǎo)主語(yǔ)從句.故選A.

點(diǎn)評(píng) 考查主語(yǔ)從句.主要要記住引導(dǎo)主語(yǔ)從句的連詞,然后根據(jù)句意選擇連詞即可.

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