21. I often go to the library with ____ friends at weekends.
A. I B. my C. me D. mine
22. My mother was born ______ July 18, 1976.
A. on B. in C.at D. of
23. I love painting, ______ I have no time to do it.
A. so B. and C. or D. but
24. — ______ is the man in the car?
— He is my brother.
A. Why B. Who C. What D. Which