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.

38. Sometimes he _________(help)his mother with the housework.

37. Don't make a noise. Grandma _________(sleep).

36. What _______ you _______(do)these days?

35. Why _______ they _______(go)to the library after school yesterday? Because they _________(want)to borrow some books.

34. Where _________(be)your parents last year? They ________(be)in Xi'an.

33. ________you ________(be)there tomorrow? No，I ________.

32. If I am free this evening，I ________(help)you with your maths.