题目

---If you       to my birthday party last Saturday, you would have met our old friend Jim .  ---I caught a cold,      I had been walking around in the rain.     A．came             B．had come           C．would come           D．would have come   答案：B  虚拟语气。从语意分析，这是非真实条件句中对过去状况的虚拟，主句谓语用should／would／could／might have done，条件句用过去完成时态，答案应该选B项。  下列各组在溶液中的反应，不管反应物的量是多少，都能用同一离子方程式表示的是A．FeBr2与Cl2 B．Ba(OH)2与H2SO4C．HCl与Na2CO3 D．NaHCO3与Ca(OH)2