1. l hope one day doctors will be able to cure all diseases.
2. When I was young, I couldn't speak English, but l can now.
3. l can't speak German because I've never had lessons.
4. l couldn't go to school yesterday because I was ill.
5. My brother is very clever. He could read when he was four years old.
6. No, we won't be able to transplant brains by 2020.
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1. l hope one day doctors will be able to cure all diseases.
2. When I was young, I couldn't speak English, but l can now.
3. l can't speak German because I've never had lessons.
4. l couldn't go to school yesterday because I was ill.
5. My brother is very clever. He could read when he was four years old.
6. No, we won't be able to transplant brains by 2020.