17.
A. 18- to 24-year-olds.
B. 35- to 44-year-olds.
C. 45- to 54-year-olds.
D. 55- to 64-year-olds.
18.
A. Women are less likely to know their neighbors than men.
B. The rich are not as close to their neighbors as the less well-off.
C. Women are more likely to know their neighbors than men.
D. The rich know their neighbors as well as the less well-off.
19.
A. We can get on well with our neighbors if we try.
B. It is easy to know our neighbors when they are in an emergency.
C. We need to give a hand to our neighbors when necessary.
D. It is hard to get to know our neighbors.
Passage two[音频]
A. Rewarding them for eating vegetables.
B. Improving the taste of vegetable dishes for them.
C. Exposing them to vegetables repeatedly.
D. Explaining the benefits of eating vegetables to them.
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