11. It was dark in the cave so she ____? a match.
A. struckB. hitC. firedD. burned
12. Mary will not be able to come to the birthday party as she is ____? with a cold.
A. laid outB. laid upC. laid byD. 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.distinctionB. indicationC. recognitionD. constitution
15. Most importantly, such an experience helps ____? aheightened sensitivity to other cultures and will bring about a greater appreciation of one’s own culture as well.
A. coachB. forsakeC. fosterD.censor
16. When Ann broke the dish she tried to put the?____?back together.
A. fragmentsB. piecesC. bitsD. slices
17. Jane tried to ____? the doorman with money, but she failed.
A. bribeB. corruptC. awardD. endow
18. Classification is a useful ____? to the organization of knowledge in any field.
A. meansB. approachC. modeD. manner
19. The human race has already paid a heavy price for its slow ____?to environmental threats.
A. responseB. responsibility
C. resolution D. resistance
20. We have a high regard for Prof. Joseph because he always ____?his principles.
A. lives onB. lives up to
C. lives through D. lives with