Appositive is defined as a noun, a noun phrase, or a noun clause which sits next to another noun to rename it or to describe it in another way. The sentence can still be completed without an appositive but adding it can present more information about the subject.
I think that: <span>( At that very moment Ivan Ilyich fell through and caught sight of the light, and it was revealed to him that though his life had not been what it should have been, this could still be rectified.): shows that Ivan Ilyich finally understands the cause of his suffering. I think that because it says "and it was revealed to him that though his life had not been what it should have been, this could still be rectified.", and I think that shows when he realises it.</span>
Answer:
the icecream might eaten by a rat in the house
After "Just lovely!"
Explanation:
After "Just lovely!" the 2nd paragraph should begin.