— ____ we go to help him with his work?—No, you needn’t. He ____ finish it all by himself.A. Must; can’t B. May; can C. Must; can
—_______ is very important in the game. —That’s right. One player doesn’t make a team.
—What’s wrong with your sister? —She broke the glass and hurt _______.
—Must I clean all the plates after dinner? —No, you ______ . But you ______ finish your homework later.
—The second-hand smoke is even more terrible. —That’s right. It does great ______ to people around.
My brother is an active boy, he often risks _____ mountain with his friends.