I

1, It is very important to have healthy teeth

2, We ought to take care of poor people

3, Last week, we planted a lot of trees in the new park that is close to our school

4, Phong ate lots of junk food so that he could be putting weight

5, Last year, we started a community garden project

II

1, My friend is fond of K-Pop music

2, Tom is interested in reality TV shows but he doesn't like game shows

3, She has worked for this volunteer organization since 2010

4, The teacher began teaching these students 3 years ago

5, His right leg was broken so he was taken to the hospital

6, My sisters think that arranging flowers is relaxing

7, haven't seen

8, won

9, My father enjoys doing gardening at the weekend

10, I haven't seen my uncle for 2 years

11, You should do exercise regularly

12, She thinks that making pottery is difficult