高中英语宾语从句综合单选题

If we learn to appreciate _____ is new and different, we will be well-prepared for ____ the future may have in store.

A．that; whatever

B．what; whatever

C．that; whichever

D．which ; that

I don’t doubt_______ he took the first place in his class; but I do doubt_______ he will succeed in the end.

A．if; that

B．but; which

C．whether; whether

D．that; whether