What was his job?
He was a well-known doctor, so he often __________ patients.
attended
What did he discover?
He discovered that the water ______________ cholera.
was linked to
What helped him draw the conclusion?
He drew the conclusion with the help of a _______ map.
valuable
What did he do after the discovery?
First, he ______________ the source of the water and found the river had been polluted. Next, he __________ people not to use the polluted water. Then, he instructed the water company not to ________ people ______ polluted water. Finally, “King Cholera” was __________.
looked into
instructed
defeated
Revision