My parents ask me （）waste time online.

单项选择题A car crashed into the side of a house after the driver lost control and （）a hedge（树篱）.

A.plowed in
B.plowed through 
C.competed with
D.fight against

单项选择题In what day does science do something harmful to mankind？（）

A.Because of science，diseases caused by polluted food have been virtually eliminated.
B.It has caused a lack of information concerning the value of food.
C.Because of the application of science，some potentially harmful substances have been added to food.
D.The scientists have preserved the color of meats，but not of vegetables.

单项选择题Which of the following statements is NOT true？（）

A.Drugs are always given to animals for medical reasons.
B.Some of the additives in our food are added to the food itself and some are given to the living animals.
C.Researchers have known about the potential dangers of food additives for over thirty-five years.
D.Food may cause forty percent of cancer in world.

单项选择题What is the best possible title of the passage？（）

A.Drug and Food.
B.Cancer and Health.
C.Food and Health.
D.Health and Drug.

单项选择题Which of the following can be the best title for this passage?（）

A.The Past and Present of ASSE
B.Student Exchange Programs Between the United States and Other Countries
C.The Function of the International Student Exchange Program
D.How to Work and Travel in the United States