Direction: In each of the following questions below, four statements are given which may or may not contain an error. Choose the one that is grammatically and meaningfully incorrect. If all the sentences are correct, mark 'All are correct' as your answer.
1
Both the sisters is inseparable when they decide to work together on something.
2
It is national sister's day today and so we are celebrating it.
3
My mother and her sister have always taught us to be better people.
4
A sister is a gift from God, who always loves you, no matter what.
5
All are correct