第17题: [单项选择]The main measures recently taken by the government to tackle the housing problem are ______. A. setting limits to public spending B. restricting house purchasing. C. extensive construction projects D. housing subsidies and easy bank loans 参考答案:D 答案解析:细节归纳题。参见第3段第1句：近几十年来，住房问题的处理政策已从促进建筑的宏观经济策略转向(政府)房贴。本段后半部分还提到，由于政府停止投资兴建住房，那些因为各种理由无法廉价租房的低收人家庭别无选择只
A. not smoked B. smoked C. has smoked D. began to smoke 参考答案:B 答案解析:since从句中所接的动词若是瞬间动词如join，catch，begin等则时间是从动作发生时算起，延续性动词如live，work，have则时间是从动作结束时算起。抽烟是延续性的行为习惯，故sinc
