Across
- 2. do something very seriously
- 3. achieved something
- 5. opinions
- 7. study
- 9. work in a team
Down
- 1. a way to solve the problem
- 4. to make
- 6. to learn again your lessons at class
- 8. nothing
- 10. can, could, may, might, must, shall,... called ___ verbs