---- Where are my keys, Dad? I can’t find them.---- Look! They’re under the table. You must _____.
—_____ does your sister go to work? —She takes the bus to go to work.
Jeff’s sister can’t swim _____dance.
Sam is a _____ swimmer. He can swim very_____.
It’s an English class. Please don’t _____Chinese.
Watching TV too much isn’t good _____ our health.