___ 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
Sometimes our opinions differ _______ what we choose to observe and how we deal with what we’ve observed
#27624
A
which
B
since
C
because
D
because of
Edison had built a chemical lab of ___ when he was very young.
#28104
A
himself
B
him
C
itself
D
his own
Li Gang was required to apologize the people present at the meeting __ what he had done．
#26675
A
for; by
B
with; about
C
to; for
D
at; with
Learning English means _________ memorizing a huge lot of words．It involves a large amount of reading as well．
#26493
A
other than
B
more than
C
rather than
D
less than