I.

1. officia'lese

2. compute'rese

3. appin'tee

4. confe'ree

5. presen'tee

6. guaran'tee

7. lega'lese

8. commit'tee

II. 

1. Have you eaten Thai food before?

2. She hasn't studied French for ten years

3. Why have you done your homework already?

4. I have known him for three months

III. 

1. has read

2. do we have

3. comes

4. isn't studying - is watching

5. do you go

6. takes

IV.
My favourite spot is one pulic library in my hometown, which used to be my weekend hideway during my childhood. It is located in the city centre, the two-storey building has made itself a welcome contrast to concrete jungles(tổ hợp nhà cao tầng). I often go to there at the weekend with my buddy. I prefer to be engrossed in classic novels or comics to relax because it can  develop my literary appreciation and broaden my mind about the world