Supply the correct form of the words in the brackets

GIẢI THÍCH RÕ RÀNG CÁC CÂU VÌ SAO LẠI VIẾT NHƯ THẾ
II. Supply the correct form of the words in the brackets:
11. Only _________________ pilots are allowed to fly large passenger planes. (experience)
12. The play we saw last night at the theater was _________________ bad. (embarrass)
13. He suffered loss of _________________ for weeks after the accident. (memorize)
14. These people remain under the _________________ of the United Nations. (protect)
15. New scientific _________________ are being made all the time. (discover)
16. The holiday provided many _________________ moments. (memory)
17. I found the whole evening intensely _________________. (embarrass)
18. I was _________________ about talking to my parents about it. (embarrass)
19. All the countries should act to stop the _________________ of rainforests. (destroy)
20. A child of his age is too young and _________________ to recognize danger.
(experience)