What did the little photographer say in the first volume of Chinese in the third grade?

Mainly about a little boy who wants to take a picture of Gorky and stick it on the blackboard in the classroom. In the process of taking pictures, he found that he forgot to load the camera with film and left in a hurry. Although Gorky said he would give the little boy film, the little boy didn't hear him. Later Gorky told the staff that if the little boy came again, he must tell him. It embodies Gorky's noble quality of caring for children.