For the answer to the question above, I believe this is an initial requirement for making a thesis or research paper. I would highly suggest that a good way to come up wth a good topic for a paper is to r<span>esearch a subject that interests you.
What amazes you and you want to explore deeper on that particular thing. I hope this helps</span>
Answer:
1. I cannot remember well, but I am sure I <em>have been</em> here for more than ten years.
The past participle of be is been.
2. Sitara was only three months old when her parents <em>relocated</em> to New York.
The past participle of relocate is relocated.
3. By the time they decided to return to India, she <em>became</em> old enough to make her own decisions.
The past tense of become is became.
The first one u can lead on but then use the second one if needed to add a good background to it
