When I handed the report to John,he said thet George was the

When I handed the report to John,he said thet George was the person___.
A to send
B is matter
C is mattered
D will be mattered
It ___ to us whether you will join us in the game.
A will matter
B is matter
C is mattered
D will be mattered
Although I know hoe to do it,___ we can find the instruments still remaind a big problem.
A that
B what
C which
D where