【B13】A．getB．makeC．haveD．do

A．valid

B．enormous

C．various

D．proper

B．To pass him some potatoes.

C．To have some potatoes.

D．To help him look some potatoes.

B．The number of heart attacks is decreasing.

C．There is no evidence that heart attacks are decreasing.

D．We can fight against different types of heart disease.

B．The speaker had found the woman in the photo.

C．The speaker had found both the mother and the daughter in the photo.

D．The speaker had found both the purse and its owner.

B．Jim doesn't cook nice in the new shirt.

C．Jim does not look nice in the old shirt.

D．He wants Jim to lend him that shirt.

A．inquiry

B．observation

C．control.

D．suspicion

In this experiment, the scientists are studying the relationship between the amount of food the mice eat and their health. The mice are in three groups. All three groups are receiving the same healthy diet. But the amount of food that each group is receiving is different. The first group is eating one cup of food each day, the second is eating two cups, and the third group of mice is eating three cups.

After three years, the healthiest group is the one that is only eating one cup of food each day. The mice in this group are thinner than normal mice. But they are more active. Also they are living longer. Mice usually live for two years. Most of the mice in this group are still alive after three years. The second group of mice is normal weight. They are healthy, too. They are active, but not as active as the thinner mice. But they are only living about two years. The last group of mice spends most of the day eating or sleeping. They are not very ac tire. These mice are living longer than the scientists thought: about a year and a hell But they are not healthy. The experiment is still going on. The scientists hope to finish their studies in two years.

(33)

A．Mice.

B．Rats.

C．Monkeys.

D．A, B and C

Two hours later, my friend telephoned me from the flat. At the moment, he said, he was listening to some of my re- cords after having just had a truly wonderful meal. He had found a pan on the gas stove and fried two eggs and had helped himself to some cold chicken from the refrigerator. Now he said, he was drinking a glass of orange juice and he hoped I would join him. I asked him if he had reached the flat without difficulty, he answered that he had not been able to find the key under the stone, but fortunately the living-room window just by the apple tree had been open and he had climbed in. I listened to all this in astonishment. There is no apple tree in front of my living room, but there is one in front of my neighbor's.

(30)

A．The friend entered the speaker's house from back door.

B．The friend entered the speaker's neighbor's house by mistake.

C．A thief entered the speaker's house by mistake.

D．The speaker's friend entered the room by climbing the apple tree.

B．He can't have an appointment with the host.

C．He won't miss the meeting.

D．He is a hardworking man.

A．Commodities

B．Necessities

C．Opportunities

D．Products