10. We will be losing money this year unless that new economic plan of yours ____ miracle.
A. is working
B. works
C. will be working
D. worked
11. It was dark in the cave so she ____ a match.
A. struck
B. hit
C. fired
D. burned
12. Mary will not be able to come to the birthday party as she is ____ with a cold.
A. laid out
B. laid up
C. laid by
D. laid down
13. She often says her greatest happiness ____ serving the handicapped children.
A.relies on
B. consists in
C. composes of
D. comprises in
14. To make this ____ clear we shall have to look closely into biology's long history.
A. distinction
B. indication
C. recognition
D. constitution
15. Most importantly, such an experience helps ____ a heightened sensitivity to other cultures and will bring about a greater appreciation of one's own culture as well.
A. coach
B. forsake
C. foster
D. censor
19. The human race has already paid a heavy price for its slow ____to environmental threats.
A. response
B. responsibility
C. resolution
D. resistance