_____many times, they succeeded _________ the experiment.
#96579
A
Having tried; in doing
B
Tried; in being done
C
Having tried; to do
D
Tried; doing
推荐题目
_____around, I find many people willing to pay a little higher price for things ____are friendly to the environment.
#90449
A
Asking ; /
B
Asking; that
C
Ask; which
D
Asked ; that
______ abroad for more than two years, he returned to his hometown.
#89414
A
Studied
B
Studying
C
Having studied
D
To study
During the examination we are required to stay in our seats, keep our eyes on our work, ____ to anyone.
#89647
A
instead of speaking
B
rather than speak
C
and not to speak
D
but would not speak
The old sick lady entered the hospital, ______ her two sons.
#97437
A
to support
B
supporting
C
supported by
D
having supported
He got well-prepared for the job interview, for he couldn’t risk the good opportunity________.
#88596
A
losing
B
being lost
C
to be losing
D
lost