1. There are millions of stars in the sky at night in the countryside.
Answer: C. in
2. Children often make a lot of noise, so adults often feel angry about that.
Answer: B. make
3. In spite of the bad weather, farmers still work on their fields.
Answer: A. In spite of
4. I am keen on visiting my grandparents on the weekend.
Answer: B. keen
5. Their farms produce rice, crops, and dairy products.
Answer: C. products
6. Some large cities have to find measures to protect them from air pollution.
Answer: D. pollution
7. The streets in cities are more crowded than those in the countryside.
Answer: B. more crowded
8. City drivers have to drive more carefully than country ones.
Answer: C. more carefully
9. Harvesting the rice is much harder than drying the rice.
Answer: D. harder
10. In my opinion, country people are friendlier than city people.
Answer: B. friendlier
11. A village is often less densely populated than a city.
Answer: B. less densely populated