John Snow was a well-known physician in London in the 19th century.     1     famous was he that he even attended Queen Victoria to ease the birth of her babies. However, he decided to defeat cholera, a     2     (dead) disease at that time when he saw thousands of people     3       (expose) to it died every time there was an outbreak.

In 1854 when cholera broke out, he began to gather information and marked on a map     4     all the dead people     5    （live）. He found many people who had drunk     6     dirty water from the pump died. So he decided that the polluted water carried cholera. He found a woman and her daughter who had the water     7    （deliver） from the pump every day died of cholera after drinking the water.     8     this extra evidence John Snow announced that the polluted water was     9    （blame）. He suggested the source of all water supplies should be examined and new methods of     10    （deal）with water be found. Finally, “King Cholera” was defeated.

2 . A best friend is someone to     1     you can tell everything, even your most     2     (person) feelings and thoughts. Anne Frank treated her diary     3     her best friend. The German Nazis were in search of Anne and her family. The family had to     4     away from the chase. They didn’t dare to go out even in the evenings. They had to stay indoors day and night. Not     5     (be) able to go out for such a long time, Anne missed the beauty of nature so much that she grew     6     about everything to do with it. She stayed up     7     eleven thirty one evening on     8     just to see the moonlight. She said, “This is the first time I     9     (see) the moonlight since I came here.”

    10     (fortunate), the family were discovered at last and taken away from the hiding place.