2. 解析:选D。offer此处意为“出价”，指他给我们的房子出价是15万美元。其他三个词均无此意。

5. You should spend two hours on average every day taking exercise.

?提升练习

4. Your plan is reasonable in theory but not practical in reality.

3. Don’t take it for granted that your mom gets up early every day to prepare breakfast for you.

2. He likes this song in particular because his mother used to sing it.

4. had received　 5. developed

10. The roads in those mountain areas are considered to be　　　　 . No drivers like going there.

A. in bad mood　 B. in bad condition

C. in bad form　 D. in bad shape

9. -What is the matter with you? Can I do you a favour?

-Thank you, I 　　　　　　　if you could take me to the station.

A. would wonder B. will wonder

C. was wondering D. had wondered