Answer:
Had
began
Explanation:
'Had' is past tense and describes an action that happened at a time earlier than the present time.
Example: I had lost my $20 that my mom sent me to the store with to buy bread, so when I got home, my mom was angry at me.
And again, 'began' is a simple past tense verb while 'begin' is present tense.
Example: I began studying my vocabulary last night, which resulted in me passing my pop quiz today.
MAKE ME BRAINLIEST!! GOD BLESS :)
He was being weird lmfoaoao jk but im guessing he was analyzing his expressions or so.
So we need to acknowledge that we are integrating with respect to common sense. The integral of velocity will give us the position function.

Go post this in physics lol
Building the Brain’s Wiring System. Each brain cell (neuron) looks a bit like a baby tree. It all depends on how the kids learn it. Since all kids learn differently. The more these neural pathways are used, the stronger they get. That’s why practicing helps build skills.
You are your freind is absolutely right