I've been wondering, are structures like the ones mentioned in the title considered correct? Is it perfectly fine to use them, or do they sound overly colloquial? Let's focus on the three examples:
a) "Wish me luck!" said Ana.
"I do" was my only response.
I can't think of any other way I could have phrased it without sounding overly wordy.
b) He told me I couldn't have predicted what the next card would be, but I truly did.
Again, this one sounds entirely idiomatical to my non-native ear.
c) He told me to rethink my actions, which I did, and go to church, which I didn't.
But in this one, for whatever reason, the second part is where I start to have doubts. Is it only me, or is the contracted form more natural than its longer version?