Zhouqu, Gansu was attacked by such a terrible mud-rock flow few residents had ever experienced before.
#33066
A
as
B
which
C
where
D
that
推荐题目
(2010·福建)The girl had hardly rung the bell ________ the door was opened suddenly，and her friend rushed out to greet her.
#30449
A
before
B
until
C
as
D
since
—I must apologize for ______ ahead of time. —That’s all right.
#32100
A
not letting you to know
B
not letting you know
C
letting you know not
D
letting not you know
____time goes by, Mother’s hair is turning gray and the wrinkles on her face deeper.
#31872
A
with
B
as
C
while
D
when
._______he is working much harder, he won’t have any trouble passing the entrance exams.
#34817
A
Ever since
B
In case
C
Even though
D
Now that