Normal vs Advanced

[egrijalva]

Not a rocket science is incorrect.
You would say: its not rocket science 😊

[ShobhaSingh-ctlu]

Please love percentage of ashrivad Or naincy please❤❤❤

[daysleeper]

(U.S. English native) I've never heard of the first two. Are those British or Australian or something?

[ceemartin]

I'm a native English speaker and you made two mistakes: It should be ' tie the knot' and 'not rocket science'. I've never heard of 'jammy' before.

[kazmavluklu]

Why? Do you have to be difficult to learn language?😭