My own child got grade 2 and he said he wasn’t my child.

(1)My friend got level 2 in humor, not my parents.
(2)When I showed my report card,
(3)My friend’s dad looked at my mom with a serious face.
(4)We’re both universities. Why are we so good at studying?
(5)I don’t think he’s a kid.
(6)That’s what he said.
(7)I cracked up when I heard that in high school.
(8)An hour ago.
(9)I feel relieved after reading the title and getting angry.