Everyone can borrow from this public library only two books _____ and they must be returned within a month.
#27493
A
at one time
B
at times
C
at the time
D
at a time
推荐题目
_____ his knowledge of the mountainous country, John Smith was appointed as our guide.
#29086
A
In spite of
B
On account of
C
Regardless of
D
In place of
His job at the hospital did not pay much, so he found another _____.
#28357
A
on the rise
B
on the spot
C
on the decline
D
on the side
.Mr Harris apologized ______ the children ______ the lady ______ what they had done. 
#25556
A
for; to; to
B
to; to; for
C
for; to; for
D
to; for; for