As long as the laws of nature , there will be tornadoes.A. existB. are existingC. will exi

发布时间：2020-08-16 21:05:38

As long as the laws of nature     , there will be tornadoes.
A. exist
B. are existing
C. will exist
D. existed

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(答案→)A. exist
B. are existing
C. will exist
D. existed
解析：考查状语从句的时态。在条件状语从句里，用一般现在时代替将来时，主句用将来时。
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