Answer:
The magenta and sky blue sentences are the answers.
Magenta) Admittedly, we cannot reuse or recycle all of the materials we use in our daily lives.
and
Sky Blue) My opponent would use these limitations of our ability to recycle to counter my points about the materials we can recycle
Both these sentences are countering the speaker's claim
He tells Jem he has perpetrated a near libel. A libel is a legal term meaning a published false statement that is damaging to a person's reputation. Atticus, is of course joking with Jem, but he asks the children to make the snowman a little less like Mr. Avery
Rapid, dart, speedy, zoom, dash, hurry
I hope this helps