1.they often buy books .2.this store sells food.3.we sweep t

1.they often buy books .2.this store sells food.3.we sweep the floor once a week.
改为被动语态!

1.books are often bought by them
2.foods are sold in this store
3.the floor is swept once a week by us
再问： 1.Jim painted the door 2.his wife made cakes for the childen 3.they broke the window 4.he parked the car in car park 5.he wrote the book ten years ago 6.they will tell us an interesting story 7.I will see a film soon 8.kate will do her homework. 9.miss black will teach English 10.We will visit the great wall.
再答： ,,,你可以根据我写的 依葫芦画瓢啊。。。很简单的。。 1.the door was painted by jim 2.cakes were made for the children by his wife 3.the window was broken by them 4.the car was parked in the car park 5.the book was written by him ten years ago 6.an interesting story will be told to us by them 7.a film will be seen by me 8.kate's homework will be done by her 9.English will be taught by miss Black 10the great wall will be visited by us. 天啊。。手好累。。加分不？呵呵
再问： 1.jack can speak english 2.you must finish your homework at first 3.you may be use my pen 4.we should wash our hands before each meal 5.he can do this work by himself