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11. Thu is happy that she wins the competition again.
12. The students are very excited that they learn how to recycle waste paper.
13. It is funny to watch the circus on television.
14. Phong is anxious that he's moving to a new school.
15. The children are very delighted that they are going on a trip to the seaside.
16. It is dangerous to ride your bike fast.
17. She was so unhappy to hear sad news from her friend.
18. Lan and Lien are very eager to report a book on wild animals next week.
19. Phong was so disappointed to get bad results in this semester.
20. It is not good for your health to eat too much sweet and fat.