I want to know if the idea _______ she has thought up works out fine.

If it , we will go hiking at Cool City Park.

Johnny, you ______ play with the knife; you _____ hurt yourself.

tists have found _____for oil as fuel. Coal, natural gas, solar power, nuclear power and even water can replace it as sources of energy.

. — May I play computer games now, mum— No, you _______. You haven’t finished your homework yet.