The silence of the library is sometimes broken by a sudden cough or the sound of pages __________.
#94546
A
turning
B
turned
C
being turned
D
having turned
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I don’t feel like ___ now.I’d prefer ___ my homework at present.
#98111
A
to sleep ; doing
B
to sleep; to do
C
sleeping; doing
D
sleeping; to do
"We must keep a secret of the things _______ here", the general said, _______ at the man in charge of the information office.
#97435
A
discussed, stared seriously 
B
being discussed, seriously staring
C
to be discussed, seriously stared 
D
discussed, stared
_______, the experiment will be successful. 
#88567
A
If carefully doing
B
If it done carefully
C
If carefully done
D
If doing carefully
______ their homework, these three students have to stay in the classroom for another thirty minutes.
#96596
A
Not finishing
B
Not finished
C
Having not finished
D
Not having finished