We must clean our teeth twice a day.改为被动语态

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• 把下列句子改为被动语态.1.My brother does not require nets to catch fish.____________________________________________________2.I removed the fish from the birds' mouths.____________________________________________________3.Mr Yang pushed the bird into the water.____________________________________________________4.We should finish our homework on time.____________________________________________________5.She takes the medicine twice a day.________________________
• we should clean our rooms every day(改为被动语态)our rooms_ _ _every day
• 英语把句子改为被动语态1.we can learn a lot from each other 2.we have to concentrate more on our study 3.you should study english by watching english videos 4.you must spend lot time on your studying 5.my mum will clean the windows tomorrow 6.in some parts of the world,people serve tea with milk and sugar 7.we told children to keep away from the medicine for their safety 8.he asked me to go to li's birthday party
• 重新排列下列单词,组成句子.1.beaches,everyone,keep,should,our,clean._______________________________2.people,get,ill,may,they,when,dirty,drink water.___________________________3.should,we,do,best,to,our,take,care,good,of,environment,the_________________4.can,wu,stop,from,them,pouring,water,dirty,the,into,river______________5.to,water,must,we,save,turn,off,the,when,tap,we,out,brush,teeth___________
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• 一个动点到直线x-3=0的距离和到圆x方y方=16的切线长相等,则此动点的轨迹方程的 速求