4.E.
1. When did you get the idea for Harry Potter ?
2. How long did it take to write the first book ?
3. How old is Harry Potter ?
4. How many books have been sold ?
F.
1. his/yours
2. my/hers
3. our/them
4. her/ours
G.
1. Is that your parent's car ?
2. I don't like Jonathan's Lee new film.
3. The world's population is increasing.
6.H.
1. us/her
2. me/it/him
3. them/you
7.I.
1. is less optimistic than
2. harder than
3. more difficult than
4. worse than
5. better...than
6. as important as
