Her son began to play __________piano when he was only three. Now he’s very good at it .
— You shouldn’t eat too much junk food. It’s bad for your health. — You’re right. junk food I eat, I will be.
The volunteers many signs to remind people to protect the environment.
useful robot! It can help with the housework like a human servant.
It’s reported that there are more than 300 smokers in China, nearly a third of all the smokers in the world.
— May I watch TV now, mum? — No, you . You must clean your room first.