-It’s time for the weather report. Could I__________ the TV, Dad?
-Go ahead, please. I also want to know about the weather for tomorrow.
A. turn on B. turn off C. turn down
-Mum, must I stay there the whole day?
-No, you__________. You__________ come back after lunch, of you like.
A. mustn’t; can B. needn’t; must C. needn’t; may