49、What will be the population of our country by the end of __________.

39. Di you noticed the guy()head looked like a big potato?

38. When Lily came home at 5 p.m. yesterday, her mother()dinner in the kichen.

37. He asked the waiter()the bill.

36. She is not only my classmate()also my good friend.

35. There()a book and some magazines on the desk.

34. Do you want to wait? Five days()too long for me to wait.

33. Measles( )a long time to get over.

32. If you don’t want to get wet, you had better( )this umbrella with you.

31. Neither Bill or his parents()at home.

30. Would you let( )to the park with my classmate, Mum?