- Air_______ is one of the biggest problems in the world today- Yes. We must take action to make the air less_______.
In our class some students are too shy to __________ our hands when the teachers ask us to answer questions.
If it _____________ tomorrow, we’ll have a picnic.
My parents don’t allow me _____________ out on school nights.
--- Whose hat is this? --- I think it can’t be John’s or Kate’s. It’s much too small for __________.
--- Where would you like to go for your next vacation? --- I’d like to sail across the Pacific because I like __________ vacations.