Ai giải giúp e vs, cảm ơn mn nhiều ạ. Em sẽ quote hết luôn nha
1. Last week, they visited Ha Long which one of the world heritages in Vietnam.
2. The way to the mountain is so long that it takes two hours to walk.
3. We are worried that people do not stop throwing trash along the street.
4. If my house was near to my office, I would walk to work every day.
5. My brother said he was going to meet penpal the following day.