We are bound ______ with difficulties in carrying out this research.
#91323
A
to meet
B
to have met
C
meeting
D
having met
推荐题目
No matter how bright a talker you are, there are times when it’s better     silent.
#91718
A
remain
B
to remain
C
having remained
D
to be remained
I’ve never dreamed of _______a picture on the wall.
#95618
A
there be
B
there being
C
there to be
D
there is
I was told that the stadium was well worth ___.
#93454
A
to visit
B
to be visited
C
visiting
D
of being visited