We Acould see how various Bfactors cause periods of global warming and cooling C

游客2024-01-02  29

问题 We Acould see how various Bfactors cause periods of global warming and cooling Conly if we combine past data Dwith current knowledge.

选项 A、 
B、 
C、 
D、 

答案 A

解析 Could is an incorrect modal in the result clause of this future real conditional sentence. Correction: can.
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