[英语]verb agreement
问题描述：
[英语]verb agreement
我们应当说:
"A,B and C are the reasons of x,y and z respectively."
还是:
"A,B and C is the reason of x,y and z respectively.
答
“is”用于主语是第三人称单数情况下,如：he（他）,she（她）,this（这个）,who（谁）,it（它）,Li Ming(李明),Your mother（你的妈妈）,my name（我的名字）或the desk（这桌子）等.例句：
He is boy.
What is this?
My name is Danny.
Danny is playing ping-pong.
Is she a teacher?
are”常用于主语是第二人称或第三人称复数时,如：you（你）,they（他们）,Li Ming and Danny（李明和丹尼）,your father and mother（你的父亲和母亲） 或these（这些）等.例句：
Are you hot?
You are hot.
They are my friends.
Li Ming and Danny are good friends.
What are these?
总上所述是第一个!