Look out for names and expressions ________ to British or American culture.

A．relating B．which related

C．related D．which is relating

Look out for cars _____ the street.

A. when crossed 　 B. when crossing

C. if you crossed 　 D. while you were crossing

Look out for cars when you ________ the street.

1. A.
   cross
2. B.
   across
3. C.
   through
4. D.
   in

 --- Look out for the door.

   --- Why?

   --- Bill ______ the door.

A. has painted          B. was painting    

C. has been painting     D. painted

Look out for cars ________ the street.

A. when crossed

B. when crossing

C. if you crossed

D. while you are crossing