求解两题1、I don't know if he ____ to Kate's birthday party.He's sure to go if he ____.
1、I don't know if he ____ to Kate's birthday party.
He's sure to go if he ____.
A.goes；knows B.will go；knows
C.goes；will know D.go；know
2、Do you know if he ____ tommrrow?
A.came B.comes
C.will come D./
要写出这道题的的选择理由，总之要有过程