Women is a plural noun because the singular noun is woman.
Please give us the story:)
Answer:
The narrator is worried that his uncle is in danger. I haven't read this, but based on the text this is what I would put.
Answer:
Mobile phone is doing good to students. This is because a lot of things we do are online now and phones are portable. So if a teacher announced in an email that there was a surprise test they would know and could study.