So many people violate traffic regulations that we ____ put too much emphasis on the importance of traffic safety. 
#62634
A
must not
B
should not
C
need not
D
cannot
推荐题目
 —Can your friend sing?--______.
#74774
A
Yes,I can
B
Yes, he can
C
No,she can
D
No,I can’t
He went into his room,    the light and began to work.
#77717
A
has turned on
B
turned off
C
turned on
D
has turned off