— Mom, must I finish my homework now?— No, you ______. You may have supper first.A. mustn’t B. needn’t C. can’t
---I would like to sit in __________ front of the bus. ---Me, too. And we can have ________ better view.
—What ______ can I do for you? —Thank you, but I can finish it myself.
—________ you show me the way to the post office? —Of course. ________, why do you want to go to the post office?
________ brave you are! It is very kind of you to save the old man.
—Why was the boy look so unhappy? —Because he was ________ to reach the apples on the tree.