It was quite a serious mistake, ____caused by carelessness.
#73080
A
which I think was
B
I think which was
C
which I think it was
D
I think which it was
推荐题目
At the party, John made up a joke, people burst out laughing.
#69282
A
on which
B
by which
C
at which
D
from which
I can’t remember the name of the park _______ we had a picnic then.
#70142
A
which
B
that
C
when
D
where
．What I like about Harvard is there’s the old classical look—there are parks and traditional buildings.
#69148
A
why
B
where
C
that
D
how
Hot _______ the night air was, we slept deeply because we were so tired after the long journey.
#67722
A
although
B
however
C
while
D
as