3 - C. island
4 - B. expensive
5 - A. visitor
6 - D. repeat
7 - A. cartoon
8 - D. countryside
9 - B. delicious
10 - B. begin
III.
1 - A. on
2 - B. in
3 - C. next to
4 - B. in
5 - C. in front of
6 - B. above
7 - C. before
8 - B. after
9 - B. of
10 - A. at
IV.
1. What about jogging in the park? - Great idea!
2. Where are you going next Sunday?
3. Tony can speak English and Vietnamese
4. My friend brushes his teeth twice a day.
5. My sister took a lot of photos at the party two days ago.
6. Hoa was a student in this school last year.
7. Mai has lunch together at the school yesterday.
8. Mary enjoy going for a walk every morning.
9. When I was young, I didn't like play tennis.
10. They will be in Ha Noi next month.
V.
1. Lỗi sai: likes (sửa lại: like)
2. Lỗi sai: stands (sửa lại: is standing)
3. Lỗi sai: How much (Sửa lại: how many)
4. Lỗi sai: visit (sửa lại: to visit)
5. Lỗi sai: most (sửa lại: more)