1. Mai used to go to school on food when she was in primary school.

2. My father usually travels to Hanoi  by plane.

3. Mai often cycles round the lake on Saturday morning.

4. What are you doing on the weekend?

5. We were stuck in a traffic jam for over two hours

6. How far is your school to your house?

7. I got off at the wrong stop and had to wait for another bus.

8. Yesterday I saw a horrible accident on my way home from school.

9. Many years ago, people didn't use to be worried about traffic jams.

10. It's illegal for women to drive in Saudi Arabia .

III

1. on - in ( on foot: đi bộ, in primary school: ở trường tiểu học )

2. by ( chỉ phương tiện dùng "by" )

3. on ( Saturday morning dùng "on" )

4. at ( at the weekend: vào cuối tuần )

5. in ( stuck in: mắc kẹt )

6. to ( How far + be + from + place + to + place )

7. off - for ( get off: xuống xe, wait for: chờ )

8. on ( on my way home: trên đường về )

9. about ( worry about: lo lắng về )

10. for ( It + be + adj + for SO + to V )