Tree house
because they were in tree house
THe second sentence is using present participle because you said " I promise" not "promised". Saying promise is when you are saying it at the time and saying promised means you've already said it. Like with how you said "kissed" instead of "kiss" in the first sentence.
it's is D, it's in the last paragraph.
Answer:
I dunno
Explanation:
I really dunno because I dunno and this needs to be 20 characters long so honestly I dunno
He was wearing an expensive watch