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
—I would like to buy an expensive camera.—Well.We have several models________.
#88718
A
to choose from
B
of choice
C
to be chosen
D
for choosing
The secretary worked late into the night,_______ a long, speech for the president.
#90043
A
to prepare
B
was preparing
C
prepared
D
preparing