( ) 1. What's your uncle? ( ) 2. Who's this woman? ( ) 3. Is this your uncle? ( ) 4. How many apples are there on the tree? ( ) 5. Who are they? ( ) 6. Are they teachers?
A. Yes, they are. B. She's my mother. C. They are my father, my mother and me. D. He's a great doctor. E. 20. F. Yes, he is.
