2. She can’t stay (long) ……longer……………….than 30 minutes.
3. It’s (good) ………the best……………. holiday I’ve had.
4. Well, the place looks (clean) ………cleaning…………….now.
5. The red shirt is better but it’s …more expensive…………………. than the white one.
6. I’ll try to finish the job (quick).…quickly………………….
7. Being a firefighter is (dangerous) ………more dangerous……………. than being a builder.
8. Lan sings ( sweet ) ……sweeter…………..than Hoa
9. This is (exciting) ………the most exciting……………. film I’ve ever seen.
10. He runs ( fast )………the fastest………….of all.
11. My Tam is one of (popular) …………the most popular…………. singers in my country.
12. Which planet is (close) ………closer……………. to the Sun?
13. Carol sings as (beautiful) …………beautiful………….as Mary, but Cindy sings the (beautiful)most beautiful