81.  However, teachers can understand their students' meaning.

82.  Tom and his neighbours tried their best to put out the fire.

83.  In China, the New Year is the solemnest festival, people have holiday, and everyone is happy with their family and friends.

84.  They shook their hand and said "Thank you" to each.

85.  It would be necessary to move 53,000 people from their villages.

86.  Children send Mother's Day cards to their mothers.

87.  They give their mothers flowers or sweets as presents.

88.  Fathers and children do all the cooking and housework to give mothers a rest .They do their best to show their love for them.

89.  It would be necessary to move 53, 000 people from their villages.

90.  All people did their best to put the fire out.