mary is going to a birthday party.选词填空（用适当形式）
mary is going to a birthday party.the party is at a friend's house.mary's friend carefully writes the directions to the party.mary doesn't know the 1. where her friend lives,so she leaves her house 2. .for 20 minutes she follows the directions 3. and get off at exit 14. then she begins to have 4. .she can't find the street. she drove around and around,and soon she is 5. .she stops and asks people for directions,6.
no one knows that street.mary doesn't have mobile phone with her.she leaves 7. at home on the kitchen table.suddenly she sees a 8. .she stops and asks him for 9. .he looks at the directions and 10 .the policeman helps her find her friend's home.
(词语：it,help,early,policeman,problem,but,lost,smile,town,careful)
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