—Excuse me, Maria. Can I use your bike?—Sure. Here you are. But you must return it _____ time.
—Li Hong failed the English exam yesterday.— . She must work harder.A. Good luck B. It’s OK C. I’m sorry to hear that
You’d better finish your homework now, I won’t let you out.A. and B. or C. so
—Dad, must we stop and wait when the light turns yellow?—I’m afraid we . It’s necessary to obey the traffic rules.A. need B. must C. may
beautiful flowers Mrs. Green plants!A. What B. What a C. How
—Does know the answer to the question?—Yes. Let me try.A. somebody B. anybody C. nobody