Cho dạng thích hợp của từ trong ngoặc.
1. My grandfather is eight-six years old. He walks very ___________. (slow)
2. I saw an __________ film on TV last night. (excite)
3. Are the toys ________ for children? (safely)
4. Ronaldo is a ___________ soccer player. He plays soccer very__________. (skill)
5. Playing soccer in the street is very _______. (danger)
6. He speaks English very____________, so I can't catch his words. (quick)
7. _______________, everyone stood up and shouted. (sudden)
8. The children behaved very __________. (good)