1. If you don’t tell the children the difference between right and wrong, they will soon be out of control. well behaved badly behaved suddenly behaved quickly behaved 2. If you think I’m going to parachute out of a plane for fun, you must be out of your mind. mad unsure unusual uncertain 3. Wait [...]

1. They tried in vain to save enough money to buy a house and so finally they rented one. without money without trial without success without work 2. If you are in any doubt about the offer, please give me a ring. at all unsure at all happy at all certain at all sure 3. [...]