Therebe any difficulty about passing the road test since you have practised a lot in the d

问题补充：

Therebe any difficulty about passing the road test since you have practised a lot in the driving school.

A. mustn’t

B. shan’t

C. shouldn’t

D. needn’t

答案：

A. mustn’t

B. shan’t

(答案→)C. shouldn’t

D. needn’t

解析：由since引导的原因状语从句，说话人认为对方已在驾校练习那么多，所以推测说，对方通过路考不会有困难。即不该有困难。