Use the correct form of the words in parentheses:
11. Minh Tuan met his old friend while he..................in Nha Trang (work)
12. Yesterday we ......................five minutes late. (arrive)
13. Flowes should ...............in warm places. (keep)
14. What makes you............... in the existence of UFOs? (believe)
15. Many new cars have much lower fuel.................... (consume)
16. We have a fierce..............in our traditions. (proud)
17. It was very ................of you leave matches where children could get them. (care)
18. He enjoys the constant..................... with students from other classes (interact)
19. The palace was.................. damaged by the fire. (extend)
20. Some .................groups have declared a boycott of tourism on the island (environment)
11. Minh Tuan met his old friend while he was working in Nha Trang (work)
12. Yesterday we arrived five minutes late. (arrive)
13. Flowes should be kept in warm places. (keep)
14. What makes you believe in the existence of UFOs? (believe)
15. Many new cars have much lower fuel consuming(consume)
16. We have a fierce pride in our traditions. (proud)
17. It was very careless of you leave matches where children could get them. (care)
18. He enjoys the constant interaction with students from other classes (interact)
19. The palace was extensively damaged by the fire. (extend)
20. Some environmental groups have declared a boycott of tourism on the island (environment)