【正文】 tle late. Our boss sometimes has extra work for us.A．may B．must C．need D．will2．To my joy, we_________ go to the bank. Mary has lent us some money.A．shouldn’t B．needn’t C．couldn’t D．wouldn’t3．—Will my car be ready by the end of the day?—It ________ be, sir. I’ll call if there’s any problem.A．must B．could C．shall D．should4．Our Chemistry teacher always tells us we ________ be too hardworking before the exams.A．mustn’t B．shouldn’t C．needn’t D．can’t5．— Is Lang Lang going to perform at Art Center this Friday?— Yes. It ________ be him. He has been here for three days.A．might B．must C．mustn’t D．may6．You ________ write the report again because spelling mistakes are not allowed at all.A．must B．can C．may D．could7．When you visit a museum, some instructions should ________ and we’d better not ________ them.A．pay attention to。 be against B．be paid attention。 against D．be paid attention to。 dares to climbB．dare to say。 dares climbD．dare to say。t C．shouldn39。t19．Don’t cross the road until the traffic lights turn green. A car_______hit you.A．need B．may C．should D．must20．—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．shall21．—Could you tell me how to renew the library books?—With pleasure. You ________ e to our desk every time. It’s easier to renew them online.A．can’t B．mustn’t C．needn’t D．shouldn’t22．Most young people like shopping online because they ________ spend much time going from shop to shop.A．needn’t B．can’t C．mustn’t D．shouldn’t23．—Will Jim e to Yangzhou for a holiday?—He ________e and it depends on how much homework he will have.A．may B．should C．must D．need24．I think all the students love the weekends because, to them, they ________ get up early on Saturdays or Sundays.A．mustn’t B．don’t need C．needn’t D．can’t25．—Is it usually warm in Yancheng in May??—Yes. But it _______ be rather cold sometimes.A．must B．should C．would D．can26．You ________ pay too much attention to protecting yourself if you plan to go abroad.A．mustn’t B．can’t C．shouldn’t D．needn’t27．—Shall I tell him the change of the time right now?—I’m afraid you ________, otherwise he will be late for the meeting.A．can B．may C．must D．need28．— Excuse me. I haven’t finished reading the book yet. May I keep it a bit longer?— Sorry, you ________. You must return it on time.A．needn’t B．can’t C．won’t D．shouldn’t29．—There is a knock at the door.—It ________ be my mom. She always es back home at this time.A．may B．may not C．must D．can’t30．Mr. Black ________ be at home now. He went abroad on vacation last Frid