II.
1.D. not only about buying and selling things
2.B. people of all ages
3.They can buy, sell, eat, drink, play games, and socialize.
4.They wear nice clothes, buy things, play the flute, dance, sing, meet friends or look for lovers.
5.No, they are held on boats, not ferries.
I. 1.They left the campsite after they had cleaned up everything.
2.Unless she gets there on time, she may get troubles.
3.We should protect endangered species.
4.My mother usually goes to the grocery store five times a week.
5.It took us two hours to wander in the park yesterday.
6.When the tornado came, she was working in the field.
I. 1.C. forest
2.D. usual