1.two safe （guards） are standing in front of the gate.
guards 保卫
2.some parents come early to school to （collect）their children every afternoon.
collect 接回
3.my daughter puts on her school （uniform） and goes to school happily.
校服 school uniform
4.all the studengts are busy preparing for tomorrow's （4-lessons）in the classroom.
这句是不是出错了?
应该是exams
5teacher's day is coming .let's （decide）how to celebrate(庆祝）it.
decide 决定
6.the man finally （achieved） (获得）his success through his own efforts(努力).
7john doesn't know the new manager,so he （fails）(未能)to tell him to attend this important meeting .
8.mary likes playing the （violin）（小提琴）very much.
9.our new teaching building is under （construction） (建筑）.we will move into it next year.