--- I was walking along the street and all of a sudden, a car cut in and knocked me down．--- You can never be ______ in the street．

Your ideas are very interesting, but we need _______ suggestions to get us out of the mess.

At the age of fourteen , Betty went to a _____ girls’ school along with her sister .

 ----Do you know the result of the ________ race? ----Yes. The winner is a boy ________ Lin Feng from Class 4.

Can you tell the ________ difference between the words “require” and “request”? I sometimes get puzzled by their meanings.