I. Điền tính từ thích hợp vào chỗ trống.
Important kind painful healthy scared serious nervous worried
1. She is very _____ kind ______ . She always helps everyone.
2. Clean teeth are _____ healthy ______ teeth!
3. It's ______ important ________to brush your teeth regularly.
4. Most students feel ______ nervous _________ before the exams.
5. She's always _______ worried _______ about her children.
6. Is your decaying tooth very_______ painful_____ ?
7. The cavity isn't _____ serious ______ because it's small.
8. I'm _____ scared ____ to go out alone at night
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Sinh Học lớp 12
