根据下列句子及所给汉语注释或首字母，在句子右边的横线上，写出空缺处各单词的正确形式。(每空只写一词)

76．My teacher always e____ me when I meet with difficulties. 　 76．____

25．---- Shall I buy this book for Tim?

----____. He might already have it.

A．I don't agree

B．No problem

C．You can't do that

D．You'd better not

24． ---- ____your car here, or you've got to be fined.

----But where on earth can I park?

A．Park

B．Don't park

C．Parking

D． Not parking

23．What color is it ____you have painted your house?

A． what

B． where

C． which

D． that