Giải nhanh giúp mik với 1. Cuc Phuong national park _________ before 2002 ​a. have been established​ b. have established c. had been established​ d. had established 2. There is a disco tonight. Are you free to join us? ​a. Sorry, I can't come​ b. it's my pleasure​ c. thank you​ d. you are wellcome 3. We will go the zoo of the new kind this afternoon. How about_______the trip to the park? ​a. take​ b. taking​ c. to take​ d. taken 4. Orphaned animals are taken care_________ at the National Park ​a. on​ b. up​ c. off​ d. of 5. Animals existing in the forest have a lot of chances to ___________ ​a. suffer. ​b. endanger​ c. develop​ d. imprison 6. __________dams hold back needed water and provide power for home and industries ​a. destructive​ b. hydroelectric​ c. impossible​ d. dependent