The document provides examples of verbs in the present and past progressive tenses, as well as the present, past, and future perfect tenses. It also gives examples of interrogative pronouns like who, whose, which, and where. The document appears to be teaching grammar concepts through example sentences for educational purposes.

1. Grammar Bank 6B-KEY
A. 1. IS BEING BUILT 2. WAS/IS BASED ON 3. WAS WATCHED BY 4. WAS STOLEN 5.
WERE WRITTEN BY 6. MY COMPUTER WAS BEING REPAIRED 7. YOU WILL BE TAKEN
8. HAS BEEN CANCELLED 9. IS SPOKEN 10. MUST BE WORN
B. 1. ARE USBTITLED 2. WERE THROWN AWAY BY MISTAKE 3. IS BEING PAINTED 4. HAVE
BEEN SOLD 5. WILL BE PLAYED TOMORROW 6. MUST BE PAID TOMORROW
Grammar Bank 6C-KEY
A. 1. WHERE 2. WHO 3. WHOSE 4. WHICH 5. WHICH 6. WHERE 7. WHOSE 8. WHO 9.
WHICH 10. WHICH
B. 1. CORRECT
2. WHO YOU MET
3. CORRECT
4. WHICH IS
5. WHOSE GARDEN
6. CORRECT
7. CORRECT
8. WHO COME FROM…