________ him not to do so, he wouldn't have made such a serious mistake.
A.If I persuaded | B.Did I persuade |
C.Had I persuaded | D.If I should persuade |
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________ him not to do so, he wouldn't have made such a serious mistake.
A.If I persuaded | B.Did I persuade |
C.Had I persuaded | D.If I should persuade |