I had been puzzled over the problem for over an hour without any result, all at once a solution flashed across my mind.
#33232
A
while
B
when
C
then
D
as
推荐题目
I have been keeping the portrait ________．I can see it every day, as it always reminds me of my childhood in Paris.
#33733
A
since
B
where
C
as
D
if
________ on a clear day, the beautiful scenery gives him a sense of peace.
#31219
A
Walking
B
If walking
C
While walking
D
When one is walking
I’ve heard a whisper ______ David and Alice are going to get married.
#32753
A
what
B
which
C
who
D
that