Đáp án 

7, informative

8, communication

9 unpolluted
10moderned

11, fashionable

12 , designer

13, convenient

14, traditional
15, careful

7- I watch the news everyday because it's very (inform).....informative ( nhiều thống tin)... 
8- The Internet is a very useful means of (communicate) .............communication( N)....................................
9- We must learn about keeping the environment (pollute ) ..............unpolluted..................................
10-Some of these traditional dresses have been…………moderned………………    (modern)
11- Many Vietnamese women continue to wear the unique and………fashionable (adj)……… dress. (fashion)
12-Lan wants to become a fashion………designer(N)………………when she grows up. (design)
13-Although its services are not very good, the hotel is………convenient (adj) …………for the beach.  (convenience)
14-Although the ao dai is the……traditional (adj)……..………dress of Vietnamese women, not many of them wear it at work. (tradition)
15-He never has any accidents. He is a ........................careful (adj)............ driver. (care).