为什么 He has a book.变复数为They have some books.he 变成了they 但是This

为什么 He has a book.变复数为They have some books.he 变成了they 但是This they are 后面能加some It is a book.复数可以变they are some books This isn't an English book.变复数.Are they rulers?变单数.How is he He has a soccer ball变复数为什么he要变they,难道不是只用改ball去a吗?为什么? They have some good books【用he作主语改为单数句】 He has a soccer ball怎么变复数?He have soccer balls是错误的. He has four English books.I have six English book.(合为一句) 为什么 he have a book 而 l has a book 用 has? He has ___ few books to read that he has to borrow some book He’a policeman 改成复数,They john like red we like banana he has an apple they have some He would like a large bowl of noodles变成复数形式 ：They would like