27. In the absence ____ necessary exercise, he can get ill easily. So he is often absent ___ class.

17. -- My mother always tells me to try my best _______ many difficulties.
-- I can’t agree any more. _______ you put your heart into work, you can overcome them.

22.   You have no idea how she finished the relay race ______ her foot wounded so much.

23. His interests extended _____ the fine arts to international politics and philosophy.

32.   Most of the audience wondered what idea a man who’s deaf from birth can have _____ music.

26.If you want to succeed ,you must work hard and ____you should be sure of success.

4. Luckily, Chinese medicine is making a difference ______ the disease.

26.  Would you please speak ____ a loud voice?  I didn’t catch what you said, with all the noise going on.

28．Whether, an advertisement succeeds or not is decided      by whether it has the culture
consciousness．

15. They gave a banqnet( 宴会)_____the guests from Britain.