_______ their service, the workers of the hotel are active in learning English.
#97633
A
Improving
B
To improve
C
Improve
D
Having improved
推荐题目
All the preparations_____, we're ready to start.
#98077
A
made
B
being made
C
having made
D
have been made
The building _______ next month is our new library.
#95049
A
finished
B
finishing
C
to finish
D
to be finished
He told us an interesting story about himself, _______________why he didn’t succeed that time.
#97865
A
explain
B
to explain
C
explained
D
explaining
We all think it most foolish ______ this mistake.
#97499
A
for you making
B
of you to make
C
you to make
D
for you to make
She ______ to Africa to study the animals there, even though her family asked her not to.
#96564
A
insisted on going
B
insisted going
C
insisted in going
D
insisted to go