15. The rising level of air pollution has caused concern among ……………..……..…… (ENVIRONMENT)
16. The local residents got no …………..……..….… from the company about the ………..……..…..…. sewage discharge. (RESPOND/ TREAT)
17. Ba was …………..……. ill right after eating those …..…………….. mushrooms. (SERIOUS/ POISON)
18. The local residents promise to keep the environment ………..……..…………. (CLEANNESS)
19. We should end a letter ………..……..……... with the words “Sincerely yours,” . (POLITE)
Loga
Sinh Học lớp 12
