Complete the idioms with the words in the list. Check in

Complete the idioms with the words in the list. Check in the Word List. Are there similar idioms in your language?
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1 Hes in serious trouble now. Hes really in hot
2 Anns always calm and doesnt worry about anything. Shes as cool as a..........
3 You can do it. Its easy. Its a piece of..........
4 You cant change anything now. Dont cry over spilt..........
5 I dont really enjoy going to the theatre. Its not my cup of..........