My grandmother's job.
My grandmother worked in an office. She started work at nine o'clock and she finished at five o'clock. She didn't earn a lot of money, but she enjoyed her job. The people were very friendly and good fun. My grandmother used a computer at work for the first time in 1981. That's a long time ago! There were phones in the office, but there weren't any mobiles. Everything is different now. My grandmother uses a tablet computer and a smartphone every day!

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My grandmother's job 

⇒ One's + N : cái gì của ai (sở hữu)

Đứng đầu câu ⇒ Chữ cái đầu viết hoa 

That's a long time ago

⇒ That's  : đó là ... 

there weren't any mobiles

⇒ there weren't + any + N số nhiều 

Everything is different now

⇒ S + be+ ADJ 

`color{orange}{~MiaMB~}`