1. Our teacher is taller than my best friend.
2. History is more difficult than Geography.
3. Apples are healthier than sweets.
4. My phone is better than my friend's mobile phone.
1) My best friend is taller then our teacher.
2) Geography is more difficult then History.
3) Apples are healthier than sweets
4) My friend’s mobile phone is better than my mobile phone.
Good luck)