—Tom must be at home because the light in his house is on. —He ____ be at home, because I saw him playing basketball on the playground. A. can B. mustn’t C. can’t
—We _____ talk loudly when we see the sign “Be quiet” on the wall. —Yes, you are right. We should be polite in public.
—Hi, Kate. You are riding a bike today. —Yes, driving a car to school every day makes me much ______.
— ______ are you in such a hurry? —I was told that my mother had been sent to the hospital. I have to leave right now.
—Do you know the man _______ black? —Oh, he is the famous singer, Jay Chou.
—Could you take ______ of these_______? They are very beautiful. —Certainly.