--Must I come at four o’clock? -- Oh, no, you ______.A. can’t B. mustn’t C. needn’t.
-- __ you bring some things for me? --Yes, I can.
Here __my family photos.
I __ a notebook. Please bring one to me.
Please __ your notebook to school. I want to use (用) it.
Listen! Some birds are singing __ the tree!