_____ many times, but he still couldn't understand it.
#98333
A
Having been told
B
Though he had been told
C
He had been told
D
Having told
推荐题目
When I entered the room, I found Mary ______ at the desk ______ her homework.
#95934
A
sat; doing
B
sitting; to do
C
seating; to do
D
seated; doing
–Did the book give the information you needed?–Yes. But _____ it, I had to read the entire book.
#97854
A
to find
B
find
C
to finding
D
finding
It is necessary ___ the magazines in time.
#98663
A
to us to return
B
for us to return
C
to us returning
D
that we had returned
Taobao．com has begun selling tickets online for international flights， to cut the market share of Ctrip．corn and other competitors．
#96778
A
to aim
B
having aimed
C
aiming
D
being aimed
Though ____a difficult and even dangerous place , Vietnam is now a friendly destination that welcomes visitors from all over the world _______.
#90790
A
considered; visiting
B
considered; to visit
C
considering ; visiting
D
considering; to visit