These sentences are supposed to be written in present-perfect tense, are the correct?

He's supposed to underline the error(s) and then offer a correct form of a verb. Some sentences, per the instructions, are correct.

I have read a book to my son. He wants me to read another one when we finish.

Archaeologists have been working on this site for over five years.

He has rehearsed his speech for hours, but he cannot memorize it all.

We have been cleaning the house all morning. We want it to be over.

You have played videogames for two hours. Don't you want to take a break?