There are many traffic a___ on this road every year.You must

There are many traffic a___ on this road every year.You must be c____ when you cross the street.
All of us must obey the traffic r____.
Here is a t____ for parking in the wrong place.
You must keep quier in class.(改为祈使句）
____ ____ in class.
Take the first turning on the left.(改为同义句）
_____ ______ at the first crossing.
Jim,you can not be late for class again.（改为祈使句）
_____ _____ late for class again,jim.
ask,the,you,and,young,can,go,man（连词成句）