______, I've never seen anyone who's as capable as Kate. [ ]

A. As long as I have travelled        

B. Now that I have travelled so much

C. As I have travelled much        

D. Much as I have travelled

齐桓公联合诸侯，讨伐不向周王进贡的楚国是为了（）

A.与楚国争夺霸主地位

B.树立自己的威信

C.维护周王的尊严

D.使楚国履行诸侯的义务