Re-write the numbered sentences below to change them into the ACTIVE tense. HINT: look for the forms of the “to be” verb – is, are, am, was, were, been, being, etc.
As the biologists discussed the final version of the paper, they realized a few mistakes had been made by them.
If the mistakes had not been made in the paper, the biologists could have avoided embarrassment.
This discovery of the bacteria that causes ulcers and stomach cancer, was made by two Australian researchers, Barry J. Marshall and Robin Warren.
For their discovery, Warren and Marshall were awarded the 2006 prize in medicine by the Norwegian Nobel Committee.
Warren and Marshall’s discovery was regarded as a paradigm shift by medical research scientists.
When the discovery of the Helicobacter Pylori bacteria was first announced by Warren and Marshall, they were believed by no one.
A vial of the bacteria was ingested by Warren on live television in Australia.
In an effort to prove that ulcers were caused by bacteria, Warren infected himself.
DaVinci’s Mona Lisa in the Louvre was visited by over ten million tourists last year.
Every year from 1869 until she died in 1906, Congress was asked by Susan B. Anthony for a constitutional amendment allowing women to vote.