58. 他一直都这么忙，以致于很少有时间和朋友们在一起。　

57. 我一直都上网。　

56. 李平既不喜欢唱歌，也不喜欢计算机。　

55. A good friend is someone who makes me happily.

54. When I stayed in Qing Dao, I was pretty happy most of time.

53. Is he a honest man?

52. While he came to see me, I was doing some washing.

51. The students explained me the reason why he was late.