They were surprised that a child should work out the problem ________ they themselves couldn't.
#79772
A
once
B
then
C
While
D
if
推荐题目
I will go to the science palace to morrow ____ it doesn’t rain heavily.
#80124
A
as if
B
in case
C
even if
D
so long as
Your uncle seems to be a good driver: _______, I wouldn’t dare to travel in his car.
#80194
A
even so
B
even though
C
therefore
D
so
It will be at least three weeks________ he recovers from his illness and returns to work.
#31963
A
before
B
when
C
since
D
after
Peter realized Linda didn’t want to connect with him as usual what he had said to her.
#33708
A
because
B
because of
C
as
D
since