1) If you do some serious revision, you won't fail your science test.
2) If we knew what he would do with it, we'd never have given Oliver the chemistry set.
3) I would use my computer more if I had access to the Internet.
4) The machine will add more milk to your coffee when you press this button.
5) If you are from London, stand up.
6) If you touch this light switch, it will give you an electric shock.
