The time he has devoted in the past years _______ the homeless is now considered _________ of great value.
#64471
A
to help; being
B
to helping; to be
C
to help; to be
D
helping; being
推荐题目
Computers have been made ______ clever that they can ______ problems like humans _______. 
#74795
A
such; deal with; in some way
B
so; do with; in one way
C
such; do with; in the way
D
so; deal with; in a way
The hospital now     patients by name, not case number.
#69505
A
refers to
B
speaks of
C
comes to
D
appeals to
When he knew that he had passed the driving test, he smiled _______. 
#64566
A
in danger
B
in relief
C
in peace
D
in return