Unless ________ to speak, you should remain silent at the conference.
#95045
A
invited
B
inviting
C
being invited
D
having invited
推荐题目
He wants to do nothing but _______ his homework.
#95935
A
finishing
B
finished
C
to finish
D
finish
I can hardly imagine such a little boy ___ across the Nile.
#97327
A
swim
B
to swim
C
swimming
D
to have swum
We walked as fast as we could, _______ to catch the 9:30 train.
#92860
A
hoping
B
to hope
C
we hoped
D
being hoped