a runny nose and tears 为什么前面有a后面tear还要加复数

I have got a headache,backache and a runny nose tonya is sneezing a lot and has a runny nose.she-----------( A lot of people were moved to tears.为什么tear加s "I have a runny nose / I have a running nose "Which is corre 英语冠词这句Tears with a smile,为什么smile前面要加a it has small mouth and nose.这句话has后面需要加 a the后面怎么可以加tears复数?+ one and a half 后面加名词单数还是复数? And I want a large box of chalk,too. 有and为什么还要加too Tear 是可数还是不可数,为什么有tears shed a tear与 shed tears的区别? Vacations can be a learning experience.为什么前面复数后面可用a