We are taking action, but how effective it will remain _______.
#93731
A
to see
B
to be seen
C
seeing
D
seen
推荐题目
A big crowd gathered _____ him ______.
#97983
A
to hear ; speak  
B
hearing ; speaking
C
to hear ; speaking
D
hearing ; to speak
If you’re interested in________ me, please drop me a line and we’ll be pal friends.
#96221
A
being friend with
B
making friends with
C
making a friend to
D
making a friend with