—Must I finish my homework before I go home?—No, you ________. But you ________ finish it before tomorrow.A.mustn’t, mustB. needn’t, mustC. needn’t, mustn’t
Please __ your notebook to school. I want to use (用) it.
Listen! Some birds are singing __ the tree!
We can see__ old bike __the tree.
--Is your hat on the sofa?
--Where __ my pictures?--They're on the desk.