—We need to learn and work ______ we live.—I think so.
—Mary was heard ________ just now. What happened? —John was telling a joke.
Our school ________ in the last five years.
Only by studying hard ________ improve her English soon.
Many teenagers have hobbies. But sometimes they can get ________ of schoolwork.
—When I was five, I drew very well. —________.