There is a police car _____ the bus. The police are watching the traffic.
Why don’t you ________ an English club to practice ________ English?
Learning about culture is ________ as learning grammar and words.
The teacher speaks very loudly ________ all the students can hear her.
—Have you ever been to Shanghai? —Yes. I _________ there with my father last year.
—Do you like talking with your friends on the telephone or mobile phone? —________. I enjoy chatting online.