Kindly help me on the SV agreement for the following sentences::1: Either a slice of toast or eggs (is/are) what I will eat for breakfast.
2: This is one of those (Book / books) that (was/were) published last year.
Answers in my opinion::1: Either a slice of toast or eggs are what I will eat for breakfast --> Though "either/or" goes with a singular verb, but the second option is plural hence I chose the plural verb "are"
2: This is one of those books that was published last year --> Though "One of" goes with a singular verb, I'm not sure of my answer.
Please correct me with explanations !!!!
Your both answers are correct with explainations.
KEEP IT UP.