A. None
B. Every one
C. No one
D. One
A. None
B. Every one
C. No one
D. One
A. None
B. Every one
C. No one
D. One
A. that to refuse
B. as refusing
C. for refusing
D. as to refuse
A. ask
B. have asked
C. to ask
D. to have asked
A. must be observe
B. had better observe
C. had to observe
D. should be observed