【正文】 ___, we’d better ________ the parents’ meeting online.A．gather。 hold B．gathering。 holding D．to gather。needn’t B．needn’t I。mustn’t D．needn’t I。d better __________ hard from now on, __________ you will fail the exam.A．work。 or C．working。 or13．When you visit a museum, some instructions should ________ and we’d better not ________ them.A．pay attention to。 againstC．be paid attention to。 be against14．I ________ hear you clearly. Would you please repeat it?A．mustn’t B．can’t C．needn’t D．shouldn’t15．A lot of online resources ________ be used either by teachers at school or parents at home.A．can B．should C．need D．must16．—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．shall17．We’ve discussed every detail of this plan and have got everything ready. But still something __________ go wrong. We still have to be very careful.A．must B．should C．would D．may18．You ______ pay too much attention to your pronunciation, as it is so important in the oral（口頭的） test.A．shouldn’t B．mustn’t C．can’t D．needn’t19．— Ready? Let’s get started, Martin.— Swimming? I just ________t B．mustn39。ve discussed every detail of this plan and have got everything ready. But still something ________ go wrong. We still have to be very careful.A．must B．should C．would D．may25．Never throw 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．need26．— Mum, why do I have to wash hands so many times a day?—You ________ be too careful, for your health.A．can’t B．mustn’t C．may not D．needn’t27．—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．need28．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’t29．—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．need30．—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．need31．A hardworking man ________ bee a great scientist, but a great scientist ________ be a hardworking man.A．can’t。 must C．can’t。 can32．—Seventy dollars for such a dress! You ________ be joking!—I’m serious. It’s made of silk from Hangzhou.A．must B．need C．will D．can33．Cars ________ give way to walkers on some roads in Binha