Some students even have no idea of they are studying, so they are aimless most of the time.
#30606
A
who
B
when
C
where
D
why
推荐题目
_______these coins are of different shapes, sizes and colors, they all date back to a long, long time ago.
#32529
A
Since
B
Unless
C
Once
D
While
it has turned out, there was no need to worry about their safety.
#30589
A
While
B
As if
C
Now that
D
As
Life is like a long race___ we compete with others to go beyond ourselves.
#33091
A
why
B
what
C
that
D
where