_______, 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 new library, ______ last week, is very popular _____ the students. 
#96838
A
opening, to
B
opened, with
C
open, to
D
having been opened, among
 I planned _____ to see you last week, but I was ill.
#98033
A
to have come
B
to come
C
to be coming
D
to have been coming
________that he made an obvious mistake,Jeff went on with his speech.
#93256
A
Not realized
B
Not realizing
C
Not to realize
D
Not to have realized
_______ late in the afternoon, Bob turned off the alarm. 
#98617
A
To sleep
B
Sleeping
C
Sleep
D
Having