Some people were eating and （1） in a coffee house. A young woman was sitting alone at a table. was wearing a beautiful diamond necklace. There was an ugly man at a table not far from her. He was （2） at her necklace all the time. Suddenly the lights went out. The coffeehouse was in darkness. The woman started to shout. She was very frightened. A few minutes later the lights came （3） again. The woman was crying. Her necklace was missing! The manager quickly closed all the doors. He telephoned the police. No one could get out of the coffee house. The policemen soon came. the police inspector told his men to search everyone. The necklace was not on anyone. They then searched the whole coffee house. The necklace couldn't be found. The police inspector then looked （4） the faces of all the people in the coffee house. He saw the ugly man and looked at the man carefully. He went up to the man and picked up the bowl of soup that was on his table. He then poured the soup into a glass. The necklace fell out. The policemen caught hold of the man and took him away. The young woman was happy to get （5） her necklace. （3）.（ ）

A.on

B.drinking

C.back

D.looking

E.at