If there no water or air on the earth, all living things would die.A. isB. wereC. areD.

发布时间:2020-08-15 03:06:14

If there      no water or air on the earth, all living things would die.
A. is
B. were
C. are
D. will be

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A. is
(答案→)B. were
C. are
D. will be
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