b1:đưa ra dạng đúng của từ đã cho 1.many people were made ...........after the flood (home) 2.go green is a non-profit............that protects the environment (organise) 3.we've donated books and clothes to the children........areas (flood) 4.you can use carved eggshell as.......in your house (decorate) 5.the children volunteered to clean up their.........and local areas (neighbor) 6.she needed only one more stamp to complete............ (collect) 7.reading book develop our........... (imagine) 8.there are many kinds of...........pollution such as air rock and roll (environment b2:thêm từ 1.i/enjoy/play/sports/because/it/good/health 2.your children/go/camp/every summer holiday? 3.i/think/photography/can/expensive hoppy 4.getting/enough/sleep/help/students/do/their best/the classroom 5.my son/i/love/water/so/we/go/surf/toghether/every/summer b3:sắp xếp từ 1.it/boring/because/finds/time/models/jim/takes/lost of/making 2.sleep/are/the/cures/a/good and/best/laugh/a/long 3.you/some/clean/yourself/avoid/diseases/by/can/keeping 4.way/others/community/a/help/service/is/great/to 5.they/community/people/because/volunteer/want/improve/to/their