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1．The earth is our only home．If we don't care about it，who else ______？（　　）
A．wasB．doesC．willD．has

分析 地球是我們唯一的家．如果我們不關心它，誰會關心呢？

解答 答案：C．考查時態(tài)．if引導的條件狀語從句，主句應為一般將來時，所以用will．

點評 本題考查時態(tài)．要熟悉if引導的條件狀語從句中，對主句和從句時態(tài)的要求．

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