| A.some school children could not read |
| B.many children's books were interesting |
| C.children wanted to learn to read |
| D.a writer for children was wanted |
| A.are cheap and easy to get |
| B.were written in different languages |
| C.are easy and interesting to read |
| D.were written with invented words |
| A.50 | B.53 | C.56 | D.87 |
| A.Doctor Seuss wrote Green Eggs and Ham with over 230 words. |
| B.Doctor Seuss wrote books only for children in the United States. |
| C.The Cat in the Hat was written only for six-year-old children. |
| D.His books provided education and enjoyment for Americans. |
| A.won a Pulitzer Prize soon after his death |
| B.sold millions of his books himself worldwide |
| C.changed American children's way of reading |
| D.wrote the largest number of books in the world |