21. He was in ____ bad condition at the sports meeting and was only placed _____ eighth in the 100-meter race.
A. a; / B. /; / C. the; the D. /; the
22. At home, he keeps some pets，to which he ______ all his spare time.
A. spends B. offers C. devotes D. provides
23. She’s tired of acting, and she _______ changing for a new job, but she hasn’t made up her mind yet.
A. had considered B. has been considering C. considered D. is going to consider
