here is the answers

1. Talking should be talked to make the sentence the past perfect, which is the correct structure.
2. This sentence should be a passive and so build should be built.
3. We don't say make a break; the correct collocation is take a break.
4. In this sentence the word would is not needed.
5. Who's means who is and so it is wrong. We use whose before a noun i.e whose pen.


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will be back next Saturday
Allah willing

wish you a nice weekend