English is a very (19) ____ language. If we know English, we can go to any countries we (20)____. We will not find it hard to make people understand (21) ____ we want to say. English also helps us to learn all kinds of (22) ____ because hundreds of books (23) ____ in English every day in many countries. English has also helped to spread ideas and knowledge in all corners of the world. Therefore, the English language has helped to spread better understanding and friendship (24)_____countries of the world. 19. A. difficult B. compulsory C. official D. useful 20. A. like B. make C. have D. cause. 21. A. that B. what C. how D. which 22. A. subjects B. difficulties C. lessons D. languages 23. A. to write B. writing C. wrote D. are written 24. A. between B. among C. either D. both

Giải nhanh hộ t bài III, IV nha

Ủa roii đc ngta hát cho thì ngồi nghe đi chứ ? Đi khoa làm gì ? Khoa là ngta sợ hả ? Khoe là ngầu hả ? Khoe là nghĩ ngta gato hả ? Jztrc đc oii ~!! Vẽ anime

13. The __________________ they made at school will last through their life. (friend) 14. Their uncle did some __________________ in Rome last year. (sightseer) 15. The students have done the exercises __________________. (easy) 16. Liz found the journey __________________. (enjoy) 17. Tuan is one of the most famous___________________in the world. (environment) 18. The air is__________________polluted by exhaust fumes me from cars. (serious) 19. Tet is one of the most important ________________for Vietnamese people . ( celebrate ) 26. There have been more floods because of _________________ . ( forest ) 27. Jogging is a very _____________form of exercise . ( energy ) 28. I think the careless drivers should be fined ___________. ( heavy ) 29. That program is very __________. None of us likes it . ( bore ) 30. Air ____________can cause a lot of respiratory problems . ( pollute )

HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEE TÌM X

cho tam giác ABC vuông cân ở A.Trên nửa mặt phẳng bờ BC không chứa điểm A,vẽ BD ⊥BC và BD=BC a)tứ giác abcd là hình gì?vì sao? b)biết ad=5cm.tính cd

Mọi người ơi đánh trọng âm giúp em với

giúp mình giarb thích acangsf tốt

Cân bằng phương trình hoá học sau : FeO3+H2SO4-->Fe2(SO4)3+H2O

Các anh/chị giải giúp em B/C, A/C, Cr B, Cr C ạ, em cảm ơn!!