1.The olympic mascots are the Olympic flame ,the fish,the pa

1.The olympic mascots are the Olympic flame ,the fish,the panda,theTibetan and the swallow,_______a lose group of friends.
A represented B.respresenting
（为什么）
2.---When can I come for my clothes I need them tomorrow.
---We will wash them this afternoon.They ____be ready by 12:00 tomorrow.
A.should Bcould.C.might D.need
（为什么,以及不选其他项的原因）
3.Has the boy who was made use of _____realized his mistakes?
A stealing B to steal
(结构是怎样的 为什么不是 make use of doing 的结构,翻译也说得通啊：被利用偷东西)