第12题: [单项选择]甲公司与一公司拟买卖一批建材，双方经多次协商后，未能签订合同，由此甲公司承担缔约过失责任，缔约过失责任发生的基础是当事人违反( )。 A. 履行合同义务 B. 先合同义务 C. 后合同义务 D. 不真正义务 参考答案:B 答案解析:[解析] 一般认为，缔约过失责任构成要件包括客观要件和主观要件，客观要件表现为违反先契约义务的行为，即缔约过失行为；其主观要件则表现为违反先契约义务债务人的主观的故意或过失。就其根本而言，
第17题: [单项选择]How can we tell whether a kid has good relationships with his or her grandparents A. They are more active. B. They are spoiled. C. They are more trusting. D. They are more energetic. 参考答案:C 答案解析:原文中有“a teacher I know once told me she can tell which kids have good relationships with grand-parent
