_______ 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
Which do you enjoy ___ your spare time, reading or playing chess?
#97337
A
to spend
B
spend
C
spending
D
being spent
________this problem, they don’t know how to deal with it.
#95133
A
Face
B
Faced
C
Facing
D
To be faced
The Group of 8(G8) _____ the eight richest countries in the world plays an import part in the international affairs.
#93962
A
is consisted of
B
consists of
C
consisting of
D
consisted of
He is the first_________hardships, the last__________comforts.
#95501
A
bearing; enjoying
B
bearing; to enjoy
C
to bear; to enjoy
D
to bear; enjoying
______ from the top of the tower, the south foot of the mountain is a sea of trees.
#95259
A
Seen
B
Seeing
C
Having seen
D
To see