Choose the suitable idioms to complete the short conversations.

Choose the correct option.

A: Why have you quit the reading club?

B: You know, it's not my [pinch of salt|cup of tea|piece of cake].

A: I can't believe Mary hasn't invited us to her party!

B: That's too bad, but we shouldn't [cry over spilt milk|spill the beans|take her words with a pinch of salt].

A: I did my best but failed the test!

B: Oh my! Maths is not a [pinch of salt|cup of tea|piece of cake].

A: Is it a secret?

B: Right! You'd better not [cry over spilt milk|spill the beans|bring home the bacon] about it.