1. There are three cimputer rooms in our school. ----Our school has three computer rooms
You are not allowed to stop on the pass inside the building,
You mustn't stop on the pass inside the building,
3. There's not much rain, so she doesn't need an umbrella
She doesn't need an umbrella because there's not much rain
4 The school library is in front of the science lab
The science lab is behind the school library
5. He finds physics much more dificult than other science subjects
He finds other science subjects much easier than physics
6. It's a good idea to wear a hat when walking in the sun
You'd better wear a hat when walking in the sun
7. Remember to buy some souvenirs when you visit the place
Don't forget to buy some souvenirs when you visit the place
8 .You should take bottled water, or you will have to buy some
If you don't take bottled water, you will have to buy some