_______, the experiment will be successful.
#88567
A
If carefully doing
B
If it done carefully
C
If carefully done
D
If doing carefully
推荐题目
The old man, ______ abroad for twenty years, is on the way back to his motherland.
#93166
A
to work
B
worked
C
to have worked
D
having worked
—Please go on with your demonstration．—But where was I?—Well, you_____the two chemicals together．
#95249
A
tried to mix
B
were trying to mix
C
were trying mixed
D
had tried to mix
The glass of water is too hot. I prefer some cold _____ water.
#98249
A
to boil
B
having boiled
C
boiled
D
boiling
______almost one hundred jin, the stone was moved by him alone.
#96094
A
Weighed
B
Weighing
C
It weighed
D
To weigh
The digital dictionary I had the other day cost me a lot.
#95729
A
repaired
B
repairing
C
to repair
D
to be repaired