【正文】 m not sure.A．must B．may C．need D．would32．Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry.A．should B．would C．must D．can33．You’ve got an A in the maths test again. You ________ be good at it.A．can B．may C．must D．should34．Mr. Black ________ be at home now. He went abroad on vacation last Friday.A．can’t B．mustn’t C．needn’t D．shouldn’t35．—In China, many students have to stay up late to do their homework.—No worries. The government has realized the problem. I’m sure there ________ be good news soon.A．can B．should C．must D．need36．—Who’s the man over there? Is that Mr. Black? —It ________ be him. Mr. Black is much taller than that man.A．may B．must C．can’t D．mustn’t37．—May I have some wine to drink?—No, you ________. You have to drive home later.A．mustn’t B．needn’t C．can’t D．may not38．—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A．should B．might C．could D．would39．It’s of great importance to protect the environment. Each of us ________ take an active part in it.A．can B．may C．would D．should40．— Is the boy over there Tom? He often wears a jacket like that.— It _______ be him. He is absent from school today.A．needn’t B．shouldn’t C．mustn’t D．can’t【參考答案】一、選擇題1．D解析：D【詳解】句意：當你參觀博物館時，應該注意一些說明，我們最好不違反它們。t B．mustn39。t16．—Would you please________in that way? That’s not safe!—Sorry. I won’t do it any more.A．not driving B．not to drive C．no driving D．not drive17．— Ready? Let’s get started, Martin.— Swimming? I just ________t C．needn39。 or11．—Is it really necessary for me to go shopping with a mask on?—I’m afraid you ________ in public. It is not only to protect yourself but also to protect others.A．must B．should C．can D．need12．I ________ hear you clearly. Would you please repeat it?A．mustn’t B．can’t C．needn’t D．shouldn’t13．It’s amazing that the pen ________turn voice into text with few mistakes.A．can B．must C．may D．need14．—Have you decided to take up teaching as career after graduation? —I ________ go abroad for further education instead. But it depends.A．must B．should C．may D．shall15．—The high school entrance examination is ing!—Yes, our teacher tells us we _______ be too careful while taking exams．A．mustn39。 or C．working。d better __________ hard from now on, __________ you will fail the exam.A．work。t D．mustn39。 be against2．Think twice before making a decision, or you __________ get into trouble.A．may B．can39。 againstC．be paid attention to。