改写成被动语态how many desks do they buy every term?they sold that

1 How many desks were bought by them every term
2 That kind of shoes was sold by them in this shop last week .
3 We were told by granny a story last night.
4 Whose ruler was borrowed by you
5 The young tree must be tied by us to the tick.
6 The bike can't be mended by them in that shop.
7 Her baby should be taken care of by you.
8 It may be taken back home by you.
9 Can this radio be mended by you here?

所谓改成被动语态的意思就是让句子中原来充当宾语的成分提出来做主语，然后把原来的谓语动词改成被动形式，即在原来动词前加相应的be动词，然后动词改成过去分词形式。
例如：主动语态：We（主） plant（谓） many trees（宾） along the road.
被动语态：Many trees（主，原句中的宾） are planted（谓，be+过去分词） along the r...