1 . We usually visit the museum when we have leisure time

=> We enjoy visiting the museum when we have leisure time

2 . Never talk with food in your month

=> You shouldn't talk with food in your month

3 . We are both bad at swimming but I am better than my sister ( badly)

=> My sister swims badly than I do

4 According to me , Enghlish is easier than Maths ( difficult )

=> According to me , Maths is more difficult than English.

5.At the Mid - Autumn Festival , kids can sing , dance , and enjoy moon - cakes . Every child like it very much ( Therefore )

⇒ At the Mid - Autumn Festival , kids can sing , dance , and enjoy moon - cakes very; therefor, every child like it very much 

1,We enjoy visiting the....time

2,You shouldn't talk with food in your month

3,My sister swims more badly me

4,...,Maths is more difficult than English