________ change your mind, do let me know.

A．If should you B．Should if you

C．Should you D．You should

 

C

【解析】C　[虛擬語(yǔ)氣中，如果從句中含有should, had, were可以省略if，構(gòu)成倒裝語(yǔ)序。should在此意為“一定……，非要……”。]

 

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