Explanation:
Change into passive....
They are inviting us on our holiday ...
The structure used in this sentence...
- Sub + is / am / are + being v3 + Obj....
Ans : We are being invited by them on our holiday...

Hello there☺️,
According to your question:-
1) Cite three lines from the poem that reveal the author's tone.
Ans:-
"I seem to remember people, atleast in cities"
"Do you see nothing watching you under the water?"
"Whose dream is this, I would like to know:"
The above three lines, clearly shows that he is a talkative, curious as well as a calm person.
2) Then summarize Atwood's attitude in a sentence.
Ans:- The attitude of Atwood is quite strange. He is a curious person, and after his curiosity is over, he is questioning whether why it happened or how. In short, he is a peculiar person.
✍️ <em>By </em><em>Benjemin</em> ☺️
The investor examined the house.
I believe it is evidence, source, information?