71.  This is a serious question for our class.

72.  some question is very easy to answer for us.

73.  It was helpful for us to answer question in class.

74.  for my birthday 1.17.

75.  for me.

76.  for me .

77.  English is very important for us.

78.  If you wd4,1-1] so, you will make progress in reading and improve English udy For this .

79.  I ill bring some question for us, we must take the base.

80.  for our class .