V

1 announcement

2 completely

3 interactive

4 conservationists 

5 advanced

6 humorous

VI

1 Tet is so important a celebration that family members living apart try to come back home.

2 Both developed and developing nations are responsible for polluting the rivers and seas

VII

1 We are looking forward to making a trip to the countryside this July 

2 We haven't seen a movie for two months

3 Lan speaks English better than Minh does

4 You must shut down the computer before 10 P.M

V

1. announcement

2. completely

3. interactive

4. conservationists 

5. advanced

6. humorous

VI

1. Tet is so important a celebration that family members living apart try to come back home.

2. Both developed and developing nations are responsible for polluting the rivers and seas.

VII

1. We are looking forward to making a trip to the countryside this July. 

2. We haven't seen a movie for two months.

3. Lan speaks English better than Minh does.

4. You must shut down the computer before 10 P.M.