Principal White has been working in the school for about 20 years,      all his energy to teaching and researching as well as the running of a healthy school.
#102248
A
devoted
B
devoting
C
to devote
D
and devote
推荐题目
Mike didn’t notice Alice entering his room. He ____ a phone call.
#104835
A
answered
B
has answered
C
was answering
D
is answering
When you don’t know a word, you can _________ in the dictionary. 
#99231
A
look it up
B
set it up
C
give it up
D
pick it up