( ) 21. Jack _______ nine years old. Nick and I ______ ten years old.
A. are; is B. is; are C. is; am
( ) 22. — ______________
— I’m ten.
A. How old are you? B. How are you? C. Where are you?
( ) 23. This is my English teacher, _________.
A. miss Wang B. Miss Wang C. Wang Miss