It is possible that the plane will land at a different airport. (MAY) The plane ... a different airport.

First, fry the onions and then add the eggs. You should add the eggs ... the onions.

Sandra has lived in many countries in Africa. Her mother works for the WWF. Sandra, ... , has lived in many countries in Africa.

Mum will only let you go camping with your friends when you are 18. Mum won’t let you go camping with your friends ... 18.

It's possible that we will save enough money to go to Peru. (MIGHT) We ...to go to Peru.

Will you text me the moment Andy sends you the results? Will you text me as you the results?

Jason is in room 84. It is on the second floor. Jason is in room 84, ... floor.

Someone started shouting at the waiter. It attracted the attention of everyone in the room. Someone started shouting at the waiter, ... everyone in the room.

It's possible that Janet's car broke down before she reached London. (COULD) Janet’s car ...                                                 before she reached London.

I'm sure that’s Emma’s sister. She looks just like Emma! (MUST) That ... sister. She looks just like Emma!

I’ll meet Paul tomorrow if he doesn’t feel ill. I’ll meet Paul tomorrow unless ... ill.

I'm sure that that woman isn't Andy’s mother. (BE) That woman ... Andy’s mother.

It’s possible that they have gone home early. (MAY) They ...                                                  home early.