Công thức:
S+think+V-ing+be++Adj
S+find+V-ing+Adj
S+find+it+Adj+to Vo
It+be+adj+for+O
Rewrite the sentences:
1.Mai finds it interesting to play with doll
Mai finds......................
2.Collecting dolls  from foreign countries is one of Jane's interests
Jane is........................
3.Volunteer work is very hard for teenagers in the city.They enjoy doing it(using "but")
4.Is your favourite hobby swimming?
Are..............................
Do...........................
5.I'm leaving now because I don't want to miss the train(so)
I'm............................