___ the employees' working efficiency, the supervisor will allow them to have a coffee break.
#29030
A
Improving
B
To improve
C
Having improved
D
Improved
推荐题目
.It’s far away from here and it’s certainly not _____ walking distance.
#27821
A
within
B
at
C
around
D
On
---How amazing it is that astronauts are exploring outer space!----- It’s a challenge, I guess, man against nature.
#28992
A
of
B
for
C
by
D
about
.– You are not afraid of snakes, are you?--- No, certainly not. Not rats, not flies, and ____ ants.
#27596
A
at best
B
at least
C
best of all
D
least of all
Tmall.com is booming, especially during the festivals，______________ price and variety, it is superior to other online shopping sites, like amazon.com and 360buy.com
#25915
A
in terms of
B
in favor of
C
in need of
D
by means of