Ex 1: 1. The last time we talked to each other was a year ago
2. We haven't seen our grandfather for two years
3. This is the first time I have read such romantic story
4. My father hasn't seen my uncle for twenty years
5. I have lived in HCM city since I was 8

1. The last time, we talked to each other was over a year ago

2. We haven't seen our grandfather for two years

3. This is the first time, i have read such a romantic story 

4. My father hasn't seen my uncle for nearly twenty years

5. I have lived in HCM City since i was 8

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