21. --- Was _____ problem that we had discussed solved?
--- Yes. We found ______ good way to deal with it.
A. a; the B. the; a C. the; the D. a; a
22. The teacher devotes himself to teaching and treats his students as his own children, so he enjoys a very good ______ among the students.
A. reputation B. expectation C. contribution D. circumstance
