____ be careful when crossing the street!
#85481
A
Must
B
Should
C
Ought to
D
Do
推荐题目
 _____ is no doubt _____ Jennifer will come to see me this weekend as usual.
#85339
A
There; that
B
It; whether
C
It; that
D
There; whether
It was on October 1st _____ new China was founded.
#85021
A
which    
B
that     
C
when
D
as
—Do you know   they got to know each other? —It was last year   they both taught Chinese in Scotland. 
#84734
A
when was it that; when
B
when it was that; that
C
when it was that; when
D
when was it that; that