1) If we send an invitation, our friends will come to our party.
2) He won't understand you if you whisper .
3) They won't survive in the desert if they don't take extra water with them.
4) If you press CTRL + s, you will save the file.
5) You will cross the Channel if you fly from Paris to London.
6) Fred will answer the phone if his wife has a bath.
7) If Claire wears this dress at the party, our guests won't stay any longer.
8) If I touch this snake, my girlfriend won't scream