His success ____ the fact ____ he had been working hard. 
#84175
A
put in; which
B
led to; because
C
lay in; that
D
got in; that
推荐题目
Don’t ________when you are in trouble, you should be brave.
#68799
A
give off
B
give out
C
give away
D
give up
Do you know how much time and effort they devoted___________such a complicated project ? 
#68207
A
to complete
B
completed
C
completing
D
to completing
 Mary devoted her life       the sick.
#68321
A
to care for
B
caring for
C
to caring for
D
to have cared for