________the working efficiency, the boss allows the employees to have a coffee break.
#96343
A
Improving
B
To improve
C
Having improved
D
Improved
推荐题目
____ the machine, the engineers paid much attention to the noise from it.
#93116
A
Having examined
B
Being examined
C
Examining
D
Examined
We, ______ a discussion with the teacher, came to understand the problem better.
#90985
A
holding
B
held
C
being held
D
having held
Whole grains are higher in fibre than processed grains, making them harder________.
#97207
A
to digest
B
digest
C
digesting
D
digested
. He regretted______ to the lecture the day before.
#97304
A
not going
B
not to go
C
not have gone
D
to not going
Kate is said ________ abroad, but I don’t know what country he studied in.
#90956
A
to have studied
B
to study
C
to be studying
D
to have been studying