0/ celebrating -> celebrated
1/ after -> before
2/ buyed -> bought
3/ who -> which
4/ ever -> eve
5/ a -> the
6/ much -> many
7/ is -> are ; differents -> different
8/ them -> their
9/ wrapping -> wrapped
10/ neighbourhoods -> neighbors
Bài 2:
1/ friendship
2/ widened
3/ electrical
4/ careful
5/ successfully
6/ importance
7/ student
8/ interested
9/ celebration
10/ unpolluted
Chúc bạn học tốt !!!

Question III.

1. after -> before 

2. house -> houses

3. buyed -> bought 

4. who -> which 

5. and others goodies -> and kinds of jam

6. gets -> get 

7. much -> many 

8. them -> their 

9. in return they -> and the children 

10. neighborhoods -> neighbors 

Question IV. 

1. friendship 

2. widened

3. electrical

4. careful

5. successfully

6. importance

7. students

8. interested

9. celebrations 

10. unpolluted 

(vote và chọn ctlhn cho mình nhé~)

   -answer by min-