Professor Black has been working in the
问题:
Professor Black has been working in the forest for years, _____ to the research of wild plants and animals. [ ]
A. devoted
B. devoting
C. to devote
D. and devote
Professor Black has been working in the forest for years, _____ to the research of wild plants and animals. [ ]
A. devoted
B. devoting
C. to devote
D. and devote