1. Why do you the internet everyday? ( surf/ to surf/ surfing/ will sury )
2. His father has bird bird is blue. ( a-a/ a-the/ the-a )
3. This is bag. Those are . ( my-his/ my-he/ I-his )
4. Singapore is one of city in the world. ( the most clean/ the most most cleanest/ the cleanest )
5. Which things can we recycle?.
a. water, electricty, rubish.
b. water, rubbish, glass.
c. water, cans, air.
d. eans, air, rubbish.
    giúp tui vs, tui phải nộp bài rồi.