The generation _____ makes it difficult for parents to understand their children's opinions.
There is much truth in the idea _kindness is usually served by frankness.
When Peter speaks in public, he always has trouble _ the right things to say.
I have a tight budget for the trip, so I'm not going to fly _the airlines lower ticket prices.
When he took his gloves off , I noticed thatone had his name written inside.
---- I hear that Jason is planning to buy a car. ---- I know. By next month, he _enough for a used one.