6．15．Benny only did half of maths problems that the other children did．
16．Benny often spelt the words terribly in the composition because he had no dictionary．
17．Benny's class went on a trip by train with their class teacher．
18．The teacher told all the students to write about something interesting they saw on the trip．
19．The teacher was happy when she saw the students taking notes．
20．This passage is about a lazy boy who didn't want to go on a trip with his class．
