根据句意，用括号内所给单词的适当形式填空。

小题1:Jerry       （go）to school at seven o’clock.

小题2:Can you play the violin         （good）?

小题3:It takes      （she）an hour          （do）her homework.

小题4:Look! The two girls            (talk) over there.

小题5:We need help for our        （swim）club.

小题6:Let’s          (see) the pandas first.

小题7:He is an           (America) boy.

小题8:          (not be) late for school again.

在设计车辆基础制动时，货车的制动倍率一般以6～9，客车以（）为主。

A.5～8

B.6～9

C.7～10

D.8～11