Answer:
she <u>is</u> an engineer
Explanation:
you can put either is or was.
(be)means be verb.
actually if it's a present tense sentence you have to put is and if it's a past tense sentence you have to put was.
The plural form of the word radius is <em>radii</em>.
I know it sounds weird, but this is correct. Adding <em>-s </em> at the end of the radius would make the word grammatically incorrect. This is because the word radius itself is a Latin word.
- Marlon Nunez
The answer is The study of life
