Across
- 3. Rules of how words are used in a language
- 5. Marks that make up the alphabet
- 6. A group of words that makes a statement
- 8. A voice that can be clearly heard
Down
- 1. To make right
- 2. A device(设备)used to both send and receive messages
- 4. Be unable to remember
- 7. A book for writing in