1.Can you give us more example（example变不变复数?为什麽?)2.Chemistry is Grace`s favorite subject at school 变同义句 Grace like chemistry best at school(like加不加s?为什麽?)3.She was having a conversation with our teacher (conversation加不加s?为什麽?)4.什么是第三人称?我只知道it ,she ,he,请举几个例子5.Are the old people siting under the tree you panents?(为什么是Are,为什麽不是Is?)
问题描述：
1.Can you give us more example（example变不变复数?为什麽?)
2.Chemistry is Grace`s favorite subject at school 变同义句 Grace like chemistry best at school(like加不加s?为什麽?)
3.She was having a conversation with our teacher (conversation加不加s?为什麽?)
4.什么是第三人称?我只知道it ,she ,he,请举几个例子
5.Are the old people siting under the tree you panents?(为什么是Are,为什麽不是Is?)
答
1.不可数
答
1.can you give us more examples,要用复数,example是可数名词
2.grace likes chemistry best at school,Grace是第三人称单数,动词后面要加s
3.she was having a conversation with our teach,conversation不可数,have a conversation是固定搭配,谈话的意思
4.除了我、你、他们以外的个人都是第三人称单数
5.are the old people siting under the tree you parents.people单复同形,只能用are,而且后面说了是parents,是复数