【題目】If we ______ take environmental problems seriously, the earth _______ worse and worse.
A.don't; will be
B.won't; isn't
C.won't; is
D.don't; won't be

【答案】A
【解析】句意:如果我們不嚴肅對待環(huán)境問題,地球就會變得越來越糟糕。結(jié)合語境可知主句描述的是將來動作,故用一般將來時態(tài)。當(dāng)主句描述將來動作時,英語條件狀語從句中一般用一般現(xiàn)在時態(tài)。所以答案是A。

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