第二节：单项填空（共15小题，每小题1分，满分15分）
6. Now I am fifty years old. I find myself moving toward ____ is ahead with a curious mixture of both fighting and accepting my aging, hoping ____ the philosophy was right when he said, “Old is always fifteen years from now.”
A. what; that B. what; what C. that; what D. that; that
7. Dogs wag their tails in different directions ____ whether they are excited and wanting to move forward or threatened and thinking of moving back.
A. judging from B. providing that C. depending on D. according to
