21. Beyond ___________stars, Fei Jun-long, the Chinese astronaut, saw nothing but ___________ space.
A. 不填; the B. the; 不填 C. 不填; 不填 D. the; the
22. --Dad, I'm confused what I am going to do after graduation.
--You'd better first explore your talents and get to know yourself so as to find out __________ your real interests lie.
A. what B. where C. in which D. how
