—You were driving at 100 km an hour, sir.

—But officer, I ________. My car can’t go more than 80.

A．may not have to

B．couldn’t have been

C．wouldn’t like to

D．needn’t to be

防尘网的清理方法主要包括以下哪些（）。

A.直接将灰尘抖除

B.用抹布清理

C.用水冲洗后晾干

D.风扇吹