79.好消息是即使小小的改变都能减少城市生活所带来的消极影响，例如可以在市中心种更多的树，或是栽种各种各样的植物来创造城市花园。
80.先前的研究表明母乳喂养的时间越长，母亲的身体就会越受益。
81. Under the big tree in front of the house is set a table.
82. He didn't study English until he was 27 years old.
83. Globalization is changing people's life style.
84. I have seen the film several times.
85. This is the house they had lived in 5 years before.
