选B 应为would有表示虚拟假设,表推测的意思,were是因为在虚拟语态中,be
动词用were根据语境,没空气,没水是虚拟假设
good what until in
Everything ( )die if there ( )no water or air on the earth.
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相关问题
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__water___air,there can be no life on Earth.
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句型转换:People will die if there is no air and no water.People
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If there is no water,there can be no life on the earth同义句
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there is no water or air on the moon .(同义句转换） there is no wa
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点解There is no air or water in the moon.等于There is no air and
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----no air or water ,there would be no life in the world.
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Man ___die without air or water