You must not be late again tomorrow.为什么要加be动词?You must not be late again tomorrow.为什么不能：You must not late again tomorrow.

You must not be late again tomorrow.为什么要加be动词?You must not be late again tomorrow.为什么不能：You must not late again tomorrow. you must ()(not be)late for school again You must not be late for school改祈使句 You must p____ that you won not be late for school again.中间填什么 you must be not true. John,you are late!Sorry,I________(not be)late again. No left tuen You must not be late for school.You must look both ways before crossing the road.You should be quiet in the reading room.改为祈使句(全部）No left tuen .You must not be late for school.You must look both ways before crossing the r can you please not be late 还是can you please do not be late You must be late for zhe meeting改为祈使句 You will be late if you ______ (not hurry) you ____to be late for the meeting.It's important.A.should notB.must notC.had better notD.ought not而为什么不是B you must be quick,____ you will be late for school.A.soB.butC.orD.and would you please ____(not be) late next time You should t( ) not to be late for the class You'd better ____(try)____(not be) late again. don't be late again为什么等于could you please not be late again?do not 等于not吗? 选择 Such films _____ by children like you.A.must be not seen B.must not be see C.must not seen D.must not be seen You are late today.You should not be late again.用祈使句形式改为同义句