____ be careful when crossing the street!
#85481
A
Must
B
Should
C
Ought to
D
Do
推荐题目
It’s was in the rice field _____ we had our league meeting.
#85219
A
where
B
that
C
in which
D
on which
It_____we had stayed together for several weeks_____ I found we had a lot in common.
#85231
A
was until; when
B
wasn’t until ; that
C
wasn’t until; when
D
was until; that
It is usually thought      a little child says is truth. 
#85322
A
What that
B
that what
C
which
D
that