Guys let see what do you think what can be a topic sentences?

Topic sentence may be something like : "You must fail thousand times before you taste the purely success".

Conclusion Sentence can be : " So you have to try again and again till you achieve what you have pursued".

OR " Failure is a part of success".

Successes of Thomas Edison.

In the 1920s, Edisons' health was starting to fail, ending with his death on October 18, 1931, at the age of 84.

there is no passage what do you mean?

give me the passage and i will answer your question

for example: in, he, a,from