__________ the experiment right, I tried again and succeeded.
#94783
A
Not having done
B
Having not done
C
Not doing
D
Not done
推荐题目
The radio club often plays songs _______by students and gives messages to keep parents ____ of the latest news.
#93244
A
sung, exchanged
B
sang, broadcasted
C
singing, approved
D
sung, informed
--- I had a hard time _____ this novel. --- I share your feeling. Who can remember the names of over 100 different characters?
#97171
A
getting through
B
taking over
C
giving off
D
putting down
The library needs ＿＿, but it will have to wait until Sunday．
#98110
A
cleaning
B
to clean
C
clean
D
being cleaned