摘要:10.B.if only表示“要是--就好了 .“但愿-- .接虚拟语气.与现在事实相反.用一般过去时态.
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_______environmental damage is done, it takes many years for the ecosystem to recover.
A.Even if B.If only C.While D.Once
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_____we promise continuous increase in rural incomes _____improve the whole people's well-being.
A.Only if; we can | B.If only; can we | C.Only if; can we | D.Unless; we can |
_______environmental damage is done, it takes many years for the ecosystem to recover.
A.Even if | B.If only | C.While | D.Once |