根据短文内容填空。

What’s this on the desk? It is my school bag. It isn’t big, but it is my good friend. Look!  It is red. Here are many books in the bag, such as my English books, my Chinese books, my math books and so on. There is a pencil-box in it, too.

【小题1】What’s this on the desk? It is my school ___________.
【小题2】My school bag is my good friend, and it is _________.
【小题3】There are many ___________ in the bag.
【小题4】There are English books, Chinese books and __________books.
【小题5】There is a ____________ in it, too.