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If there was no air, people would die.为什么不用were
人气:252 ℃ 时间:2019-10-11 19:58:32
解答
air是不可数名词
there be 句型后加可数名词单数或为不可数名词时用is/was/has been
后加可数名词复数时用are/were/have been
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