The man we followed suddenly stopped and looked as if _____ whether he was going the the right direction.
#88582
A
seeing
B
having seen
C
to have seen
D
to see
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Nobody but doctors or nurses and those __________ by Dr. Hu ________ to enter the patient's room.
#88472
A
invited;is allowed
B
are invited;are allowed
C
being invited;allowed
D
invited;are allowed
She prefers _____ her clothes by hands rather than by machine.
#96629
A
having washed
B
washing
C
being washed
D
to wash