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.
Whisky and soda is my favorite drink.
Bread and butter is my favorite snack.
由and连接的并列主语中如果有each, every, no修饰时，其谓语动词要用单数形式。例如：
Every boy and every girl has a dictionary at hand.
Each man and each woman has a dancing partner at the party.
In our country every boy and every girl has the right to receive education.
not…but…，not only … but also…，either……or,…，neither……nor…，there be…，here…
Either Mr. Smith or his wife and sons have to face the difficulties.
There are fourteen chairs and a whiteboard in the meeting room.
One or more pages are missing.
The headmaster or I am going to hand out the papers.
with, along with, together with, including, except, but, besides, rather than, instead of
The library including 5,000 books was burnt down last night.
The teacher rather than the students was wrong.
Family, class, group, team, crew, committee,等
The class is made up of 40 students.
Swimming is good for you.
Fifty dollars is too much for me.
Father gave me a dictionary as a birthday gift, which makes me excited.
Physics is really difficult for me to learn.