- 1 Post By 5jj
isolating a chemical element
"The fact that radium "had been/was ??"discovered by Marie Curie gave her the possibility of isolating other radioactive elements."
"The fact that Marie Curie "had discovered/discovered radium gave her the possibility to isolate other radioactive elements."
Which one sounds better?
Re: isolating a chemical element
The past perfect.
Originally Posted by ostap77
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