20.If you this experiment, you will understand the theory better. A. will be doing B. have done C. will have done D. would do 查看更多

 

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If you_____this experiment you will understand the theory better.

A.will be doing

B.have done

C.will have done

D.would do

 

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 20. If you_____this experiment you will understand the theory better.

         A.will be doing                B.have done C.will have done             D. would do

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 If you ________ this experiment,you will understand the theory better.
A. will be doing        B. have done        C. will have done         D. would do

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