Like butter wouldn’t ____.

She looked quite innocent, as though butter wouldn't ____ in her mouth, but we knew better. 
(To seem innocent, but the opposite is true).

Piece of ____.
The maths test was a piece of ____. 
(Extremely easy).

To go cold _____.
After smoking twenty cigarettes every day for ten years, he decided to go cold _____.
(To stop completely).

Like two ____ in a pod.
The two twin sisters are like two ____  in a pod. They do everything together.
(Very similar to each other)

To spill the ____.
I’m throwing a surprise engagement party for my friends. Make sure you don’t spill the ____!
(To accidentally make secret information become known).

Like butter wouldn’t ____. She looked quite innocent, as though butter wouldn't ____ in her mouth, but we knew better. (To seem innocent, but the opposite is true).

Like butter wouldn’t . She looked quite innocent, as though butter wouldn't in her mouth, but we knew better. (To seem innocent, but the opposite is true).