Complete the sentences without changing their meanings: 1. It is useful for many families to write down a set of rules about how family members are expected to behave. Many families find _________________________________________________________________________ 2. Many parents think that it's good idea to make the rules public by sticking them on the fridge. Many parents think that they ____________________________________________________ 3. It is necessary for young children to get supervision and support to follow family rules. Young children will _______________________________________________________