Answer
1. Clutch
2.
3.
4. Alpha
5. Sulk
6. Juxtapose
7. Labyrinth
Explanation:
Sorry, Couldn't figure out the rest
The pep rally really heartened the team, who had suffered so many setbacks and challenges during the season that many were thinking of quitting.
To hearten means to give someone hope.
The facts are become clearer by the day; this new direction will lead to disaster.
These are two independent clauses, so they need to be connected by a semi-colon.
Hope this helps!