【正文】
________ the parents’ meeting online.A.gather。 hold C.gather。 to hold12.—The high school entrance examination is ing!—Yes, our teacher tells us we _______ be too careful while taking exams.A.mustn39。t C.needn39。t13.Will you be back early this evening?Yes, but I ________ be a little late. Our boss sometimes has extra work for us.A.may B.must C.need D.will14.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.may15.When I was young, my father ___________ take me to climb the hill which was not far from our house.A.may B.must C.would D.should16.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’t17.My bike was broken yesterday,so I____walk home. A.might B.had to C.must D.could18.—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 drive19.Dr. Zhong Nanshan once said, To prevent the spread of this disease, we________never be too careful.A.can B.may C.must D.should20.— 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’t21.— The sandstorm in Beijing is so serious this year.— Yes, I wonder when we ________ worry about the air we breathe.A.can’t B.mustn’t C.needn’t D.shouldn’t22.— Listen! Tom ________ be listening to the music while doing his homework.— Let’s go upstairs to remind him to turn it off.A.should B.could C.would D.must23.—Suzy described every detail of the accident just now.—Her memory ________ be pletely back.A.shall B.need C.must D.could24.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.need25.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’t26.—In China, many parents plain that their children have to stay up late to do the homework. —Don’t worry. The government has realized the problem. I’m sure there ________ be good news soon.A.can B.should C.need D.must27.— 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’t28.— Will dad arrive home at 6 o’clock to have dinner with us this evening?— I think he will, but he ________ not. Sometimes he works extra h