_____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
The gas price keeps rising, ________ an average of 7.7 yuan per liter this month.
#88790
A
hit
B
to hit
C
hitting
D
hits
The flu is believed ________ by viruses that like to reproduce in the cell inside the human nose and throat.
#89170
A
causing
B
being caused
C
to be caused
D
to have caused
The Wangs are considering ______ to Huangshan for a trip at five tomorrow morning.
#95607
A
to move off
B
moving
C
moving off
D
movement
—What if he failed in the next monthly examination again? — I don’t know. ______ heart and be reduced _____ the class?
#88862
A
Will he lose; not to attending
B
Did he lose; to not attending
C
Had he lost; not to attending
D
Would he lose; to not attending