litter baskets have been placed under the trees为什么不用has

Litter-baskets have been placed under the trees汉语意思 we have placed litter-baskets under the threes改成被动句 litter baskets have been placed under the trees为什么不用has Litter baskets have been placed under the trees,but people still throw their rubbish everywhereeverywhere为什么加在最后 litter baskets have been placed under the trees 这句话是被动语态 求变成主动语态. The litter baskets were empty 为什么empty不是过去式 Someone asks you if the litter baskets have been emptied yet.You know they've already been done.What do you say? Litter baskets have been placed under the trees,but people still throw their rubbish everywhere.throw为什么用现在时不是用过去的时态 Litter baskets have been placed under the trees,but people still throw their rubbish everywhere.时间副词still为什么放在throw前? 把people place litter baskets under the trees改为被动式people place litter baskets under the trees改为现在完成时、一般过去式、一般将来时的被动语态 The litter baskets were empty and the ground was covered with pieces of paper,cigarette ends为什么加with 英语翻译1,You left your shoes at a shop to be repared.What do you say when you walk in to ask if they have been repaired yet?2,Someone saks you if the litter baskets have been emptied yet.You know they've already been done.What do you say?3,Someo We have emptied the baskets.变成被动语态. we have emptied the baskets的被动语态 I have ten dollar in my pocket at________(litter). 短文首字母填空Paper that is thrown in the street is called litter.the people of New York wanted a clean city.They wanted to get fid of r______.They made a big litter basket.It was a reminder to everyone to throw paper into litter baskets.One l 1,fruit baskets cost $16 each.how many do you have to sell to raise $1152,how many $16 fruit baskets can you but if you have$45?3,deluxe fruit baskets cost $26 each.how many do you have to sell to raise $190.我去找翻译的,看不明白他说什 Litter girl Litter girl