当老师进来的时候，我们正在愉快地交谈。

单项选择题How is the health of the population of Cubatao（）

A. There are more heart diseases among people who live near chemical factories.
B. More people suffer from lung diseases because of poisonous matter.
C. Their health is affected by pollutants the same way as that of other Brazilians.
D. Babies there are found not as bright as those who live in other places.

单项选择题The best way to protect children from improper material is（）

A. to install (安装) a content screener on the computer
B. to buy some search engines for the children
C. to be nearby when they are surfing the Internet
D. to talk to the children and persuade them to tell right from wrong

问答题一位著名的运动员将传送熊熊燃烧的火炬。

单项选择题14（）

A.days 
B.hours 
C.months 
D.minutes

单项选择题After taking an inventory, if the owner found that he had got more money than he had spent, he made（）

A. a profit
B. a loss
C. an income
D. an interest