1.——It is only ten minutes' walk,so we'd better walk there,___we?

1.——It is only ten minutes' walk,so we'd better walk there,___we?
A DIDN'T B HADN'T
2.What should I do if I ___ in the game?——Keep confident,_________ happens.
A willfail;what B fail;no matter how
C fails;whatever C fail;whatever