【正文】 ces ________ be used either by teachers at school or parents at home.A．can B．should C．need D．must15．If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day.A．can’t B．mustn’t C．needn’t D．shouldn’t16．— Zoe, what do you think is the greatest advantage of shopping online?— At least I ______ spend much time going from shop to shop.A．shouldn’t B．can’t C．needn’t D．mustn’t17．Please don39。d better __________ hard from now on, __________ you will fail the exam.A．work。t3．—Hurry up, Jack! Let’s cross the road as fast as possible.—No, you ________. Don’t you see the light is still red?A．couldn’t B．wouldn’t C．mustn’t D．needn’t4．—The high school entrance examination is ing!— Yes, our teacher tells us we ________ be too careful while taking exams.A．mustn’t B．shouldn’t C．needn’t D．can’t5．—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’t6．—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．should7．We shouldn’t throw any objects from the building. Even a small object ________ cause serious injuries or death, when dropped from a great height.A．must B．should C．may D．need8．—Dad, must we wait until the light bees green? —Yes, I am afraid we ________. That’s the traffic rule.A．may B．can C．have to D．need9．—How do you like my new dress? —Well, if I ________ say, it is not suitable for you.A．may B．must C．have to D．should10．Exercise is helpful but it ________ be regular (規(guī)律的) exercise.A．must B．may C．can D．need11．You ________ require others to do with the problem like you. Everyone has his own way.A．mustn’t B．needn’t C．may not D．shouldn’t12．You39。 against D．be paid attention to。 should C．should?？疾榍閼B(tài)動詞。mustn’t禁止；shouldn’t不應該；needn’t不必；can’t不能。6．D解析：D【詳解】句意：——我的車今天能修好嗎？——應該能，先生，如果有什么問題我會打電話給你。must必須；should應該；may可能；need需要。may可以；must必須（有義務、有必要）；have to不得不（客觀情況驅使）；should應該。11．D解析：D【詳解】句意：你不應該要求別人像你一樣來處理問題。and和；or否則。can能，可以；should應該；need需要；must必須。16．C解析：C【詳解】句意：——佐伊，你認為網上購物最大的優(yōu)勢是什么？——至少我不需要花很多時間逛商店?！皀eedn39。故選B。根據(jù)Shall we go camping this summer holiday，可知，此空要對上文的建議表達自己的看法。故選A?？疾榍閼B(tài)動詞?？疾榍閼B(tài)動詞詞義辨析。can能、會；should應當；need需要；must必須、一定；根據(jù)空前“I’m sure”可推知，應是“there must be，一定有”，表示肯定的推測?？疾榍閼B(tài)動詞詞義辨析。故選D。may not也許不；needn’t不需要；might not也許不；mustn’t禁止。但草莓必須放進冰箱保鮮。故選D。——當然可以。may可能；can能夠；should應該；might可能；has to不得不；must必須。t不應該；mustn39。根據(jù)主句“you will be fined according to the rules.”可知，應是如果你一定要抽的話。40．C解析：C【詳解】句意：你數(shù)學考試再次得了