All his time _______research on Chinese history, he has no time for outdoor activities.
#91209
A
devoted to do
B
devoted to doing
C
devoting to doing
D
is devoted to doing
推荐题目
The room with the window _____north wants______.
#91456
A
facing; cleaned
B
faces; cleaning
C
faced; to be cleaned
D
facing; cleaning
With his work_________________on time, he felt very excited. 
#91606
A
to be finished
B
to finish
C
finishing
D
finished