chuyen sang cach noi so nhieu dung so luong da cho neu co
eg ; there is a chair in my room (4)
there are four chairs in our room
1, is there a bench in his room ? (2)
2, that is an armchair
3, she has a child (3)
4, there isn't a bookshelf in my room (5)
5, i'm in class 3A