根据句意，用括号内所给单词的适当形式填空。

小题1:Tom 　　　　(drop) his schoolbag on the bus. He felt worried.

小题2:My mother is looking forward to 　　　　(meet) you.

小题3:At first, our foreign English teacher spoke so 　　　　(quick) that no one could follow her.

小题4:— What’s wrong with Maria?

— She fell off the bike and hurt 　　　　(her).

小题5:— How clean your house is!

— Thank you. It 　　　　(clean) every day.

64S型半自动闭塞接车站值班员办理到达复原，接车站复原，黄灯熄灭，发车站不能复原的原因是（）。

A、FUJ不吸起

B、DDJ不释放 

C、TCJ43接点不通

D、与DDJ并联的RC支路放电时间过长