They considered ___ a computer, which was considered ___ a great help in their work.
#83823
A
to buy; to be
B
buying; being
C
to buy; being
D
buying; to be
推荐题目
These tress ________ and also ____________. 
#71076
A
need trimming(修剪); need to water
B
need to trim; need watering
C
need trimming; need watering
D
need be trimmed; need be watered