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单选题
_____ no gravity, there would be no air around the earth.
A
Were there
B
There were
C
Was there
D
There be
参考答案
参考解析
解析：
原句为“If there were no gravity, there would be no air around the earth.”，省略之后变为“Were there no gravity, there would be no air around the earth.”虚拟语气中用were而不用was。
原句为“If there were no gravity, there would be no air around the earth.”，省略之后变为“Were there no gravity, there would be no air around the earth.”虚拟语气中用were而不用was。
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