【C10】______
A. regarded as
B. defined as
C. looked as
D. thought as
【C19】______
A. she discovered
B. she did discover
C. did she discover
D. does she discover
【C16】______
A. released
B. relieved
C. realized
D. regretted
【C20】______
A. above all
B. after all
C. in all
D. at all