—What’s your impression of the Great Wall?—Wonderful! Once       , it can never be forgotten.
#96766
A
seen
B
seeing
C
being seen
D
saw
推荐题目
I want my son __________ all sorts of people with different values and beliefs.
#90713
A
being exposed to
B
exposing to
C
to be exposed to
D
expose to
Nobody but doctors and those _______ by Dr Smith ______ to enter the patient’s room.
#91639
A
invited; is allowed
B
invited; are allowed
C
being invited; is allowed
D
being invited; are allowed
New ideas sometimes have to wait for years before ________.
#89124
A
being fully accepted
B
fully accepted
C
fully accepting
D
fully being accepting