--- Credit cards are useful when travelling.—True. They save us the trouble of taking too much cash.
---I went to the beach and got plenty of rest. --- ________ You looked tired last time I saw you.
I like swimming, while what my brother enjoys ____.
Not until Jane got off the bus did she find her wallet______.
The classroom is so dirty that it needs________ badly.
Americans eat____ vegetables per person today as they did in 1990.