Would "My most hated thing is singing" be an acceptable translation? "Pet hate" is a strange idiom to me; "pet peeve" seems more familiar.
Thanks for the clarifications. I was wondering why there was no "hates" among the choices, as I thought my pet was a 3rd person singular who was hating something...
I was completely confused by this, so I asked my native speaker partner to help and he was very confused by the use of words here. Is this a dialect specific sentance?
No, it is a fairly common expression.
I agree with Julie, I never hear people say "pet hate." However, the app will not accept "what I hate most" instead.