71. My mother is a te acher and she has t__________ English in this school for 20 years.
72. The n_______ ___ side of the building gets less sun than the south.
73. If the sky is c__________, there’s no rain or cloud and you can see very far.
74. Bella can speak two l__________, French and Chinese.
75. S__________ can be used for making food and drinks sweet.
76. Susan was born in a v__________ but she works in the city now.
77. Jack is the tallest a__________ the three students.
78. Please don’t make a n__________ because the baby is sleeping now.
79. It is reported that two men were killed in a car a__________ early this morning.
80. My doctor advised me to take the medicine t__________ a day, in the morning and evening.