33. you master an effective method to study French make great progress in a short time. A.Only if; will you B.Only if; you will C.Unless; will you D.Unless; you will 查看更多

 

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______ you master an effective method to study French____ make great progress in a short time.

A.Only if; will you                                  B.Only if; you will

C.Unless; will you                                    D.Unless; you will

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