Viết lại câu sao cho nghĩa của câu không đổi:
1. They sell tickets at the gate of the tourist site
=> Tickets ...............................................................
2. They didn't go camping yesterday because it rained heavily
=> Because of ............................................................
3. Be careful or you'll hurt yourself
=> If you are ...........................................................
1. They sell tickets at the gate of the tourist site
=> Tickets are sold at the gate of the tourist site.
2. They didn't go camping yesterday because it rained heavily
=> Because of the heavy rain, they didn't go camping.
3. Be careful or you'll hurt yourself
=> If you are not careful, you'll hurt yourself.