The harder we study, the more questions we think of        .
#89640
A
asked
B
asking 
C
to ask
D
ask
推荐题目
________ in the cage for half a day, the bird became hungry.
#95582
A
Being kept
B
Having kept
C
Having been kept
D
Have been kept
The storm left ,_______ a lot of damage to this area .
#98956
A
caused
B
to have caused
C
to cause
D
having caused
She finds _____ staying at home.
#96222
A
it bored
B
that boring
C
that bored
D
it boring