______ their service, the workers of the hotel are active in learning English.
#91829
A
Improving
B
To improve
C
Improve
D
Having improved
推荐题目
The project _________ by the end of 2012, will expand the city’s telephone network to cover 2000000 users.
#92587
A
being accomplished
B
accomplished
C
to be accomplished
D
having been accomplished
To make believe that there was still someone in the house, the housewife went downstairs, ______ the lights ______ in the living room.
#96038
A
left; burnt
B
leaving; burning
C
leaving; burnt
D
left; being burnt
You want to tell me, and I have no objection ______ it.
#98724
A
to hear
B
to hearing
C
hearing
D
having heard
It is fairly common in Africa for a group of musicians surrounded by others who also join in the performances.
#95251
A
there are
B
there being
C
there to be
D
there be
A fifteen- year-old girl came _____ to the bus stop only ____ the bus had gone.
#94127
A
running, to find
B
to run, to find
C
and run, found
D
running, finding