Question

find the mistakes and correct these sentences
1.You mustn't to be extravagant
2.I can't play tennis very well
3.My grandad can use the internet very easily. It's difficult for him.
4.He can does very difficult sums in his head .
5.She can play three instruments when she was ten.
6.I think everyone should 24 years old for getting married.
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Answer 1

Answer:

question no 4,6,3 are incorrect