My sister, an inexperienced rider, was found sitting on the bicycle______to balance it.
#97901
A
having tried
B
trying
C
to try
D
tried
推荐题目
Our teacher is clever and hardworking, but not very good at _______ his ideas to us. 
#95817
A
getting over
B
getting across
C
getting on
D
getting into
When the fire broke out, Mary didn't know ___.
#97806
A
what to do
B
what do
C
to do what
D
what thing to do
Napoleon is famously said ______, "When China wakes, it will shake the world."
#89344
A
to declare
B
declaring
C
to have declared
D
having declared
 A railway station is no place for a child _____ alone at night. 
#98765
A
leave
B
leaving
C
to be leaving
D
to be left