They are some pens,some books some cards.
#57403
A
of
B
or
C
and
D
but
推荐题目
--- Look! Lots of people there. What’s wrong?--- An old lady was going across the road ________ a car hit her.
#57346
A
while
B
as
C
whether
D
when
—All the isatis root（板蓝根） is sold out!—People are crazy! experts say there is no use eating isatis root to preventH7N9, some people still don’t believe it.
#56593
A
Although
B
Unless
C
As a result
D
In order that