They were surprised that a child should work out the problem____ they themselves could not.
#31497
A
once
B
unless
C
while
D
if
推荐题目
_______ travelling expenses rising a lot, we had to change all our plans for the tour．
#33058
A
As
B
By
C
Since
D
With
The roof began to fall ______ she had time to dash into the room to save her baby.
#33452
A
after
B
as
C
before
D
until
I like to listen to music ______ I’m having a walk in the evening.
#33673
A
since
B
after
C
while
D
before
A programmer may make mistakes in a wrong analysis of the situation _____ the programme was based.
#33586
A
which
B
of which
C
on which
D
of what
______, but he insisted that he _____ to school ．
#33820
A
Though he was ill , went
B
He was ill, go
C
Having been ill, should go
D
Having been ill , went