He goes to school early every morning.
The children are playing outside.
To work hard is necessary for a student.
Both he and I are right.
Mr Black and Mrs Black have a son called Tom.
His teacher and friend is a beautiful girl.
The poet and writer has come.
In our country every boy and every girl has the right to receive education.
Each man and each woman is asked to help.
(4)主语是单数时，尽管后面跟有 but ,except, besides, with 等介词短语，谓语动词仍用单数。例如：
The teacher with his students is going to visit the museum.
Nobody but two boys was late for class.
Bread and butter is a daily food in the west.