Last Monday when I stepped into my classroom .Then --------

Last Monday when I stepped into my classroom .Then ________ my classmate told us that our class teacher,Mr.Sun,had been______killed in a traffic accident.On this news,I couldn"t believe my_______ears or accept the fact until the headmaster came to tell us the _______truth.My eyes were filled with tear.It seemed so unbelievable_________because he gives us lessons on Monday morning .Mr.Sun was _______a middle-aged year teacher.He was full of sense of humor.______We all liked him very much because his excellent teaching.________His lessons were both lovely and interesting.So we all liked________to attend his class.He was an experienced teacher._________