When the teacher came into the classroom, all of us __________ the classroom.A. are cleaning B. were cleaning C. cleanedD are cleaned
— I heard Max sing just now. What beautiful voice! — That’s true. He also has good sense of humour.
---- Dad, I’m fixing my bike, can you give me a hand? ---- Just . Be sure of your own ability.
---- Let’s go out to enjoy the fresh air? ---- .
The street was very busy because there was traffic.
---- What’s Jim’s English teacher like? ---- .