1. has (HTĐ, S[số ít]+has)
2. is (HTĐ, S[số ít]+is)
3. is (HTĐ)
4. likes (HTĐ)
5. has never bitten (HTHT)
6. barks (HTĐ)
7. is (HTĐ)
8. doesn't like (HTĐ)
9. often plays (HTĐ)
10. became (QKĐ)
11. just has slept (HTHT)
12. plays (HTĐ)
13. are (Cấu trúc There are: (+) There are+some/many/số đếm+$N_{s}$ )
14. doesn't let (HTĐ)
15. often takes (HTĐ)
16. sometimes is (HTĐ)
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