Question

3) A: Where are Tony and Mary? B: They 11 the bus stop. They're going 12 school. A: Have they got 13 books? B: Yes, Mary is reading 14 book, and Tony 15 books in his bag.

Answer 1

B: They 11 are at the bus stop. They're going 12 to school.
A: Have they got 13 any books?
B: Yes, Mary is reading 14 a book, and Tony 15 has books in his bag.

Answer 2

Here is the text with the missing words filled in:

A: Where are Tony and Mary? B: They're at the bus stop. They're going to school. A: Have they got their books? B: Yes, Mary is reading a book, and Tony has 15 books in his bag.