竣工结算应依据的文件是：(2012，9)

A．施工合同

B．初步设计图纸

C．承包方申请的签证

D．投资估算

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.