we must _____(be) quiet in the library.

we must _____(be) quiet in the library. it must be _____(interest) We must be careful when you go _____（cross） the road. We must have the work _____ before next FridayA.finishB.finishedC.finishingD.to be finished We must ___(be) careful. We must be strict_____ourselves_____our work. We must _____ _____ animals _____.We must _____ ______animals _____.We must _____ _____ animals _____.We must _____ ______animals _____.We must take good care of animals。(改成同义句) We must be happy,however we we must stop-_____(pollute) our earth we must not waste _____ food ____drink We must be must be这句话意思 变反意疑问句You must be joking,_____? _____(safe) must be ______(first) The workers must finish building the house next month.（改为一般疑问句.）_____ _____ _____ _____ _____ _____by the workers next month?These desks can’t be moved away be-cause we are using them now.-------------------------------（对划 Everything _____ has been doneA.which we must doB.all that can be doneC.can be doneD.that can be done选哪个?为什么? We must be careful.怎么改祈使句 We must be careful_____(cross) the road. We must be quiet in the library.