Please need help thank

Number one would be B

Number two would be C

Number three would be 'where'

Number four would be 'who'

Number five would be 'before'

Number six would be 'why'

Number seven would be 'because'

Number eight would be 'that'

Number nine would be 'when'

And number ten would be 'where'  

Explanation:

I hope this helps, I can only say I answered them to the best of my ability.

(If they're right, could you make me as brainliest?)

four sitting presidents have been assassinated while in office but the first was abraham lincoln,

it granted civil rights to african americans.