3．听第六段材料，回答第21至25小题．
21．How many people were there in Bill?s family？
A．Three． B．Four． C．Five．
22．Why did Bill go to the town？
A．To buy some clothes． B．To buy some food． C．To walk their pet dog．
23．Where were the two boys when Bill got into the shop？
A．In the police station． B．In the shop． C．In the car．
24．What were the boys and the dog like in the story？
A．Brave． B．Silly． C．Impolite．
25．What happened at the end of the story？
A．Bill lost his car．
B．The man was caught by the police．
C．The car，the boys and the dog were back home safely．
