30.We should keep (　　　 )good health by doing morning exercises.

29.I like hot tea (　　　 )honey.

28.The concert begins (　　　 ) a pop song and ends (　　　　 ) a western music.

27.He is better (　　　　 )swimming (　　　　 )skating.

26.We are twins.and we have much (　　　　 )common.

25. (　　　 )the moment,we are all happy to see our astronauts come back to the earth safely.

24. He didn’t fall asleep u(　　　 )12’clock at night.

23.We must care (　　　 )the wild animals (　　　 )danger.

22.We show much interest (　　　 ) English.

21.Don’t play jokes (　　　 )me,and please be serious.