The waste water, when _______，should be clean enough to meet standards.
#79577
A
releasing
B
being released
C
released
D
to be released
推荐题目
It was not until early this morning _______ my father came back from work, which surprised us.
#81456
A
when
B
where
C
that
D
who
Not until the next morning _____ how serious the situation was．
#83104
A
did she realise
B
had she realised
C
she realised
D
she had realized
Barry must have visited the Eiffel Tower before，________he?
#79657
A
mustn’t
B
hadn’t
C
hasn’t
D
needn’t
--I'll be away on a business trip. Would you mind looking after my cat?--Not at all._________.
#84268
A
I've no time
B
I'd rather not
C
I'd like it
D
I'd be happy to
__________, and you'll get your research findings recognized in the medical circle.
#82072
A
Making a bit more effort
B
If you make a bit more effort
C
Given a bit more effort
D
A bit more effort