Math, asked by jcajci, 7 months ago

Scientists___________(conduct) research for years to find a cure for cancer. [Present Perfect
Continuous​

Answers

Answered by austinvictor2006
5

Conducted

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Answered by Ravina
5

Answer:

Scientists have been conducting research for years to find a cure for Cancer.

"have been conducting" is Present Perfect Continuous Tense

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