题目

用下列短语的正确形式填空。carry on；by chance；come across；catch one's eye；be intended for；cannot wait to （1） The book the students in their first year of learning English. （2） Lily was reading. All of a sudden, something strange. （3） His father died and he his father's factory. （4） I one of my old friends in the street yesterday. （5） I met Tom yesterday. （6） I go home and have a rest that day.12．下列如图是五种粒子的结构示意图，关于这五种粒子的说法正确的是（　　）A．它们表示五种元素B．①表示的粒子为金属原子C．②③⑤都是稳定结构，都属于阳离子D．④表示的粒子在化学反应中易失电子