题目

_____ worries me is _____ we’re going to pay for all this. A. It, that      B. That, how C. What, how D. As, that 答案：C， 解析: what worries me 为主语从句，且 what 在主语从句中用作主语。“山北黄牛下旱地，山南水牛犁水田”，该地最可能是A．巫山 B．秦岭 C．南岭 D．天山