48. My grandson ______________(be)ill for a week.

47. We _______ already _______(draw)five pictures.

46. How long _______ your mother _______(teach)English in this school? ---For ten years.

45. ______she ______(tell)you the good news? ---No，she _______.

44. ______ you______(visit)the Science Museum? ---Yes，I________.

43. Where _____he ______(be)? He _________(be)to the bank.

42. They ______ just _______(talk)about you.

41. We'll wait till you _______(make)up your mind.

40. We ________(show)the foreign friends around Beijing when they get here.

39. Please write to us as soon as you _________(get)there.