Question

Put the verbs in the correct past form : Edward Jenner (make) a discovery that (change) the course of history.Many people (die) from smallpox in eighteenth-century England, and for a long time,Jenner (try) to find a cure. Jenner (live) in the country,and he (notice) that the local milkmaids never (catch) smallpox. After experimentation,Jenner (conclude) that this was because they all (suffer) from cowpox at least once in their life and therefore,(become) immune to smallpox.Based on these observations,Jenner (develop) the method of vaccination and in 1798 he (publish) his findings.In 1853,vaccination (be) compulsory in Britain and in 1980 it was declared by the World Health Assembly that smallpow (be/eradicated) throughout the world.

Answer 1

...made.....changed....died....tried....lived...noticed.....cought....concluded....suffered...became....developed....published ...   was......was eradicated

Answer 2

Jenner made a discovery that changed the course of history.Many people died from smallpox ineighteenth-century England, and for a long time,Jenner tried to find a cure. Jenner lived in the country,and he noticed that the local milkmaids never cought smallpox. After experimentation,Jenner concluded that this was because they all suffered from cowpox at least once in their life and therefore,became immune to smallpox.Based on these observations,Jenner developing the method of vaccination and in 1798 he published his findings.In 1853,vaccination was compulsory in Britain and in 1980 it was declared by the World Health Assembly that smallpow was eradicated throughout the world.