71.  There are two teaching buildings, one experiment building and one large playground in the school, the students can have physical training in the playground .

72.  So the goremment was going to sent two men to take his papers.

73.  But at ten thirty, two man came his house to get the papers.

74.  After two men got away, the Sergent Bull and Inspector White arrived professor's house.

75.  They asked them that the two men weren't the right men.

76.  The papers which two men had taken were not the real ones.

77.  I have two questions to ask you.

78.  But, I must attend the other two experiment .

79.  Our school has two classroom building , and a lab building.

80.  Then he tried to put out the fire with two boys.