Fred entered without knocking and, very out of breath, sank _________ a chair.
#28609
A
on
B
off
C
into
D
to
推荐题目
The doctor must be _______ 24 hours a day, 7 days a week in the boarding school.
#25574
A
on call
B
by hand
C
in sight
D
on spot
He was accused _____taking ______drugs when he was at school , so he was questioned by the police.
#29041
A
of; up ;
B
for; down
C
of ; on
D
from; into
_____ the recent bad weather, the project is several weeks behind schedule.
#27134
A
Apart from
B
Owing to
C
Instead of
D
But for
Good friends as we are, I still find her difficult to understand ________.
#27428
A
at one time
B
at a time
C
at times
D
at the time