Question

Change the following passage into past tense and rewrite it.
Down through the years, we have fought the cause of this disease with sanitation, mosquito
netting, by oiling stagnant pools and with insecticides. And we have combatted the disease
itself with Atabrine and quinine. Atabrine is a substitute material but it is not synthetic quinine.​

Answer 1

Answer:

Down through the years,we had foughy the cause of this disease with sanitation,mosquito netting,by oiling stagnant pools and with insecticides. And we had combatted the disease iyself witj Atabrine and quinine. Atabrine is a substitute material but it is not synthetic quinine