it is often said that teachers have a very easy life.为什么后面是a

it is often said that teachers have a very easy life.为什么后面是a It is often said that ( ) teachers have ( )very easy life. 21．It is often said that teachers have very easy life. it is said that _ teachers have _ very easy life. 英语22.It is often said that ________ teachers have _______ ve It is said that you have a pen It is often said that __________teachers have __________ ver 为什么是It is said that 而不是It said that It is often said that an American starts a speech with a jok It has often been said that life is difficult as it is It's often said that you will have the same life as the pers It's often said that you will have the same life