1.The students are doing a science experiment in the lab now.

2.Space travel will become affordable for everyone in the future.

3.You shouldn't stay up late to watch TV programmes.

1. Students should use online resources for learning.

2.Although she didn’t speak English well, she traveled alone to the UK.

To save energy at school, I always take simple but effective actions. First, I make sure to turn off all the lights and fans before leaving the classroom for break time or PE lessons. Second, I shut down the computers and projectors after use to prevent electricity waste. Finally, I use natural light by opening the windows during the day. These small habits help protect our environment.