Prompts: to need to; may; must; should; can; to be able to.
1. An educated man … do arithmetic.
2. An educated man … have a basic knowledge of geography of world.
3. An educated man … have an elementary knowledge of at least one science.
4. An educated man … have an elementary knowledge of logic.
5. An educated man … say what he means in suitable words both speaking and writing.
6. An educated man … know how to learn.
7. An educated man … have some active experience with a computer.
8. 200 years ago an educated man … know anything about science.
9. 45-50 years ago the educated man … know anything about computers.
10. Today the educated man … have some significant knowledge of science.
11. Today the educated man … have a little significant knowledge about computers.
may
must
need to
is able to
must
may
mustn’t
is able to
need to