He worked hard to ________ some money for his retirement.
#78128
A
set about
B
set out
C
set off
D
set aside
推荐题目
With the gas _____, they had to quit the car and walked.
#65992
A
ran out
B
running out
C
run out of
D
was run out of
We should give the disabled encouragement to live _____ as we do. 
#64172
A
as a rich and full life
B
as rich and full a life
C
so a rich and full life
D
so rich and full a life