21. - Do you know Cindy was famous at_______ very young age.
- Yes. But she died young. She died at_______ age of 33.
A. a; an B. a; the C. the; the D. the; an
22. - Do you ever quarrel _______ your family_______ which TV programme to watch?
- No, never.
A. about; with B. over; with C. to, over D. with; about
23. - When my brother was alone abroad, my mother was_______ about him a lot.