填入适当的连词完成句子并在句末写出句子中所含从句的类型
【小题1】________ I am worried about is the fact ________ more and more children become overweight. ________
【小题2】It was ________ was advertised on TV that made many customers buy what they might not need. __________________
【小题3】Lucy hesitated about ________ she should accept his invitation. ___________
【小题4】When hearing the news ________ he had won first prize, he was excited. _________
【小题5】This famous university is ________ he studied for four years. ___________
【小题6】The city is different from ________ it was ten years ago. ______________
【小题7】The question ________ so many people would like to take photos before eating is still under discussion. __________________________