1.If it does not rain tomorrow, I will go camping with my friends.
2.If I met an Alien from outer space, I would invite him/ her/ it to my home and talk/ to talk.
3.I have never travelled by air.
4.The students are studying for their exam now.
5.Would you mind if i borrow your car?
6.Tom is always going home late so his mother is very angry.
7.It's necessary for you to practice English every day.
8.Compost can be made from household and garden waste.
9.Flight 710 to Chicago will take off in ten minutes.
10.How long does it take you to go to school?