There ________ be 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

有些人状态好、睡眠少，认为自己失眠。这是______失眠。（　）

A．情景性

B．新奇性

C．假性　　

D．正常性