Please correct these sentences

1. Does Tom writes his stories from time to time? - No, he is a keen writer, and he has devoted his life to this endeavour  =  An attempt to achieve a goal.

2. You have asked me about my belly. Your question was ambiguous. Do you connote that I am pregnant? Are are imlying that I am pregnant /Did my big belly connotes pregnancy to you?

3. A polymath is a person who is well-versed in lots of fields of knowledge.? The identity of the polymath is still unknown

4. My gratitude has no limits. ( is boundless to Mr......= adj . unlimited; immense)

5. If you persist in your pursuit to attain/reach your goals , all your dreams will come true. Attain=succeed in achieving (something that one desires and has worked for).

6. Are your a professional singer? - No, I am a keen amateur.

7. Tom proposed to Ann a ludicrious offer to spend their weekend together, however she excepted it, because she was intrigued( by it). ( ludicrious = so foolish, unreasonable, or out of place as to be amusing; ridiculous )

8. Don't look for the means/for ways to avert this event, because some events are inevitable.

9. That spot on the couch is gone, because Ann has wiped it off it very well.  ( vanish= disappear suddenly)

10. We have to respect the senile people. Someday we may become the same as them/become like them. We can't avert/prevent/ stop our aging.

To avert is to to stop an incident/something bad from occurring, so to use avert  is not good because we all age and it is as natural as being young .Its not an incident that can happen . Aging is continous. However death is an incident . So , we can say we cant avert death