帮忙把几个句子改成被动语态

题目

帮忙把几个句子改成被动语态
1.You must not take these magezines out of the reading-room.
2.Has anybody fed the birds?
3.They are repairing the car in the garage.
4.they have found ways to make waste water clean.
5.they gave him a medal for his wonderful work.
6.the bad weather made them give up the trip.
7.people will laugh at you if you wear that dress.
8.do you often clean your room?>
9.they are making this type of radios in Shanghai.
10.we saw a bus running towards us at that time.
11.we heard them sing in Shanghai.
变成被动语态哦～必须是今天2点之前～不然不给分哒

答案

1These magezines must not be taken out of the reading-room by you .2Has the birds been fed by anyone?3The car is being repaired in the garage. 4.Ways have been found to make waste water clean by them...