— I wonder at 6:00 yesterday afternoon.
— I was doing my homework in the reading room.
A. what were you doing B. what did you do
C. what you were doing D. what you are doing
— You shouldn’t eat too much junk food. It’s bad for your health.
— You’re right. junk food I eat, I will be.
A. The less ; the healthier B. The less ; the healthy
C. The more ; the healthier D. The more ; the healthy
The volunteers many signs to remind people to protect the environment.
A. put on B. put up C. put down D. put off
useful robot! It can help with the housework like a human servant.
A. How B. What an C. How a D. What a
It’s reported that there are more than 300 smokers in China, nearly a third of all the smokers in the world.
A. million B. millions
C. million of D. millions of
— May I watch TV now, mum?
— No, you . You must clean your room first.
A. may not B. needn’t C. can’t D. mustn’t
