=>
IV/
1. arrangement
2. interesting
3. invitation
4. energetic
5. encourage
6. sociable
7. popular
8. creative
9. surprising
10. disappear
V/
1. How long did it take you to fly from Hongkong to Hanoi?
2. My mother is a very good cook.
3. I'm not interested in roller-skating.
4. Why didn't you come to class last Monday?
5. I didn't have a toothache and they didn't,either.
6. I spend about two hours each day doing my homework.
7. Will you take care of the house while I am away?
