________ global energy safety, all the countries have been called on to take joint efforts ．
#97844
A
Having ensured
B
Ensuring
C
To ensure
D
To have ensured
推荐题目
Before you decide to leave your job，_____ the effect it will have on your family.
#98761
A
consider
B
considering
C
to consider
D
considered
Lingyan Temple has a long history________from the early period of the Dongjin Dynasty.
#91891
A
dated
B
dating
C
to date
D
being dated
_____by the running , they went on running after the thief.
#97585
A
Exhausting
B
Having exhausted
C
Exhausted
D
To exhaust
The headmaster told us ____ football in the teaching building.
#96543
A
to not play
B
not to play
C
not playing
D
not played
____, I had to buy a new one.
#89888
A
My dictionary losing
B
My dictionary having been lost
C
Because my dictionary lost
D
My dictionary had been lost