21. She had __________ accident, but luckily, she wasn't hurt in _______ event at all.
A. a, a B. an, an C. an, the D. the, an
22. Whose school uniform is this? It’s _______.
A. her B. my C. his D. your
23. James enjoys _______. He has a lot of CDs in his locker.
A. reading books B. listening to music
C. watching TV D. drawing pictures
24. There ______ an important exam next Saturday. We need to prepare for it.
A. will have B. are C. is D. will be