The writer and professor, whom I often refer to at the meetings, ____ famous for those works. 
#86155
A
is
B
are
C
am
D
were
推荐题目
When the teacher asks him, he always ____.
#43575
A
keep silent
B
keep silently
C
keeps silent
D
keeps silenty
.One out of three villagers                  a new school in the village.
#86162
A
advocates to build
B
advocate to build
C
advocates building
D
advocate building