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Hi Susan,

Could you please help me check if 'on the other hand' would sound natural instead of 'but' in these sentences?
Is there any subtle difference in meaning or in tone between but and on the other hand here?

1.Mike is tall. On the other hand, he is thin.

2.Mary is not a kind girl. On the other hand, she is smart.

3.Is it a black knife?
It is not a black knife. On the other hand, it is rusty.

4.Are oranges usually cheap here?
Yes, they are usually cheap here. On the other hand, they are expensive now.

Thank you very much for your help.