第35题: [单项选择]Things might have been much worse ff the mother______ on her right to keep the baby. A. has been insisting B. had insisted C. would insist D. insisted 参考答案:B 答案解析:本题考查虚拟语气的用法:从句表示与过去事实相反的假设,应该用过去完成时。例如:Capital is only the fruit of labor,and could never have exist