37. My sister goes to the post office in order to buy some stamps and envelopes.
38. The flowers should be kept in a warm sunny place by the farmers.
39. It is difficult to speak English well. 
40. The man sitting next to me is my father's friend.
41. Would you mind if I took a photo?
42. People jog every day so as to have good health.43. This computer is exported to seventy different countries by that company.
44. It is boring to talk to him.
45. She gave me some wine made from grapes.
46. Would you mind giving me some information ?

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37. My sister goes to the post office in order to buy some stamps and envelopes.

38. The flowers should be kept in a warm sunny place by the farmers.

39. It is difficult to speak English well. 

40. The man sitting next to me is my father's friend.

41. Would you mind if I took a photo?

42. People jog every day so as to have good health.

43. This computer is exported to seventy different countries by that company.

44. It is boring to talk to him.

45. She gave me some wine made from grapes.

46. Would you mind giving me some information ?