who یا whom

1. When the assistant answers the phone, he always asks ____ is calling.

2. Which sentence is correct?

3. My brother met the woman __________ I used to work for.

4. Tell me __________ you are looking for and I’ll try to help you.

5. You say you called yesterday. To __________ did you speak?

6. I need to know the number of people __________ are going to attend.

7. _______ is Elaine living with?

8. _______ is that man at the end of the alley?

9. To _______ should I give this letter?

10. Do you know the girl ______ just walked in?