Though ______, many laws of nature exist.
#97974
A
not having been discovered
B
having not been discovered
C
not having discovered
D
having not discovered
推荐题目
____ to cholera, the people became _______.
#90474
A
Exposed; terrified
B
Exposing; terrified
C
To expose, terrifying
D
Exposed; terrifying
—Can you come up with another good idea?—This is the best approach I can imagine ________ the work ahead of schedule.
#88809
A
to accomplish
B
to accomplishing
C
accomplishing
D
accomplished
All the machines stopped _____ with the electricity _____ throughout the factory.
#96858
A
working; cut through
B
to work; cut down
C
working; cut off
D
to work; cut up
While cleaning the snow on the road, _________.
#94063
A
a wallet was found on the ground.
B
a wallet appeared on the ground.
C
I found a wallet lying on the ground.
D
I found a wallet laid on the ground.
—Would you mind _____ the window？It's hot in here. —No, please. —Would you mind _____ the window？It's hot in here. —I'd like to.
#98009
A
your closing
B
opening
C
my closing
D
my opening