The meat is ______expensive and eating _______meat is bad for your health.
It’s time to say goodbye to my school. I’ll always remember the people have helped me.
–Smoking should in school. --I agree. It’s bad for our health.
The boy asked his father .
Would you mind me how this math problem ?
–I think Mr Zhang may be in his office. --No, he be there. I saw him just now. A. needn’t, left B. mustn’t, leaving C. can’t, leave C. shouldn’t, leave