Question

Our travel insurance cover lost items, such as passports. what is the wrong subject - verb agreement

Answer 1

It is in the word cover, which should've been 'covers'. This is because travel insurance is singular.

English is weird.

Answer 2

Since "travel insurance" is singular, the verb should be in the third singular person, and thus have a "s" at the end:

"Our travel insurance covers lost items, such as passports"