21. The job interview was an unforgettable ____ for me. They hired me because they wanted
someone with ______.
A. experiences; experience B. experiences; experiences
C. experience; experiences D. experience; experience
22. Li Mei is the student _________ handwriting is the best in our class.
A. who B. whom C. whose D. that
23. -- Have you finished your homework?
-- Not yet. How I regret____ three hours playing computer games.
A. to waste B. not to waste C. wasting D. not wasting
