Almost all of his time ______ experiments, he has no time to visit his parents.
#91129
A
devoted to do
B
devoting to doing
C
devoted to doing
D
is devoted to doing
推荐题目
With efforts _______ conservation, we may believe that people enjoy a healthy life without the environment around them ________. 
#91305
A
focused on; suffering
B
focusing on; suffering
C
focused on; being suffered
D
focusing on; suffered
With all the things he needed _______, he went home happily.
#91001
A
bought
B
buying
C
to be bought
D
to buy