问题详情

How do the traffic wardens protect the form. they give to the motorist from rain？
A．They put the form. in a little plastic envelope.
B．They put the form. under one of the windscreen wipers.
C．They wait there until the motorist returns.
D．They will ask the motorist to go to their office for the form.请帮忙给出正确答案和分析，谢谢！