Action must be _____ to stop further pollution.

Action must be _____ to stop further pollution. it must be _____(interest) 变反意疑问句You must be joking,_____? _____(safe) must be ______(first) I think he must be a teacher,_____ _____. 翻译:You must take action. 英语翻译Every complete sentence must have a verb (action word).When there is not action in the sentence,we use the verb to be (am,is,are). There must be someone living here[同义句转换]There must be someone ______ _____ here .It’s not here .It must be _____ ( anywhere ) there you must _____(be) on time next time. we must _____(be) quiet in the library. It must be _____(fun) to climb mountain 反疑问句 There must be something in the bag _____?. It is dangerous .You _____(must be)careful He coughs _____-(terrible).He must be ill. They must _____(be)at school by eight o'clock phones must be kept off _____ the talk it must be fun to go abroad,(改为感叹句） _____ _____ it must be to go abroad!