1. 去掉a 2. have后加been 3. exam→exams 4. was→were 5. strong→strongly
6. too→so 7. 去掉of 8. live→living 9. without-with 10. fact后加that
1. 去掉a 2. have后加been 3. exam→exams 4. was→were 5. strong→strongly
6. too→so 7. 去掉of 8. live→living 9. without-with 10. fact后加that