1. I love Thai food now, but I didn't used to like spicy food =>use

2. He can drive a bicycle with his hands off the handlebars.=> without

3. We use to walk miles to school every day due to lack of public transport. =>a lack

4. You are not allowed to drive faster than the number on a limit speed sign.=> of the limit speed signs

5. It about 1137 km from Ha Noi to HCM City=> It's

6. Bicycles are a cheap and efficient mean of transport. => cheap

7. A sign within a red triangle will warn people for something.=>about

8. Be careful when you are on roads. You must drive fast or carelessly!=> slow