① Mrs Li wanted to open her new shop but the signs were not ready．She asked Bob to help her．
Mrs Li：Please come to the shop early and put up the signs，Bob．Then open the shop at ten o'clock．
Bob：Yes，boss(老板)．
②Bob went to the shop at six o'clock．He put the"Exit(出口)"sign on the outside (外面)of the door and put the"Entrance(入口)"sign on the inside(里面)of the door．Then he opened the shop．
③Leo：There's only one door and it says"Exit"．Where's the entrance?
Ann：The shop isn't open．It says "Closed"．
Tim：But there's a man inside．
④Nobody came to the shop all day．At six o'clock Bob went into the street．He asked a boy to come in．"Oh，I think your shop is closed．Look at the sign．It says "Closed"，said the boy．
⑤Joyful Toy Shop didn't have a good start(开始)．It made no money all day．Bob knew why nobody came into the shop．The signs were in the wrong places．He changed the signs．
B. 
C. 
E. 
F. 
