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2. He is not discussing this question now.
3. He never goes on a trip without his friends.
4. Jack has had this smartphone for two years.
5. Jack was ironing clothes from 4 to 6 o'clock last Saturday.
6. She swims very well.
7. The train has just gone.
8. When mother entered his room, he was drawing a picture.
9. It was eleven o'clock, when I decided to go to bed.
10. He has been driving since he was 19.