V.
1. more
2. for
3. there
4. so
5. can
6. in
7. the
8. has
9. be
10. where
VI.
1. collection
2. inconvenient
3. skillful
4. safe
5. friendly
6. healthily
VII.
1. more heavily
2. harder
3. more brightly
4. more quickly
5. more happily
6. more noisily
7. more easily
8. better
VIII.
1. more soundly
2. more healthily
3. more traditionally
4. better
5. more generously
6. more quickly
7. more optimistically
8. more badly
IX.
1. Nick writes essays more carefully than Phuc.
2. A snail moves more slowly than a crab.
3. My father explained the subject more clearly than my brother.
4. My cousin sings better than me.
5. Phong swims faster than Phuc.
Chúc bạn học tốt!