The missing word is a verb.
Simply choose an appropriate verb that makes sense.
Examples:
placed
pushed
will move
She is supporting an inference from the text. An inference is something that is implied, and the person saying they've "witnessed much fighting" infers that they're old, whereas "I am wounded with iron" can be taken to mean he's been wounded by a weapon like a sword.
The House of Representatives has the special power to impeach a government official.
"Whoa there, buddy," Leticia cautioned, "Let's not jump to any conclusions."
Which would also be #2.