高中英语选修6第64页第一,

Ex1.It was in 1996 that the first children's conference on the environment organized in Australia.It is children that/who runs Millennium Kids.It is on the Internet that you can find out more about Millennium Kids.It is at the yearly conference that the young people decide which projects to concentrate on.It is plastic bags that Millennium Kids asking you to reduce,reuse and recycle.Ex2.It was four Australian children who started it in 1996.It is at this conference that want to work on in the following year.亲：高老师祝你学习进步,每天都开心V_V!望采纳,thanks(thx)!