______, the conference began.
#91020
A
The candidates having taken their seats
B
The candidates had taken their seats
C
Taken their seats
D
Taking their seats
推荐题目
With a lot of homework _________, I had to stay at home all day.
#91357
A
done
B
doing
C
to do
D
being done
With the police _______ the traffic, we could get back home safely in such bad weather.
#90986
A
to direct
B
directed
C
directing
D
being directed
With more and more people__________ the importance of English, English training has become a profit-making industry.
#91300
A
have realized
B
realizing
C
to realize
D
having realized
_________ the lecture going on, the students got more and more interested.
#91244
A
With
B
While
C
During
D
As