II.
1. has
2. drinks
3. are going to see
4. visiting
5. rides/is riding
III.
A.
1. T
2. F
3. T
4. T
B.
1. There are two seasons in South Vietnam.
2. They often go camping and swimming.
3. Because it often rains in the afternoon.
IV.
1. Ba always walks to school.
2. The Mekong River is longer than the Red River.
3. Ho Chi Minh City is larger than Hanoi.
4. How much rice and how many vegetables does he produce?