After ________in the research for so many years，the scientist succeeded in finding the result at last.
#93113
A
buried
B
being buried
C
having buried
D
having been buried
推荐题目
I still remember ____ to the Summer Palace and what I saw there.
#95996
A
taking
B
to take
C
to be taken
D
being taken
I liked this new house, but I hadn’t expected it ______ so small.
#97374
A
to be
B
be
C
of being
D
to being
Private cars will be required to stay off roads one out of five weekdays ____ the traffic pressure.
#95410
A
to reduce
B
reducing
C
reduced
D
reduce
—Hi，Mary.Would you like to go to the concert this evening?—Sorry，Tom.________ tomorrow's lessons，I have no time to go out with you.
#89137
A
Not preparing
B
Not having prepared
C
Not to prepare
D
Being not prepared
All things____________, her paper is of great value.
#97109
A
to consider
B
having considering
C
considering
D
considered