题目内容
Problems relating to people’s livelihood(民生)have been the focus of the govemment,especially_____Premiel Wen Jiabao included them in his governmentwork report last year.
A.when B.if C.since D.until
C
句意:民生问题一直是政府工作的焦点,尤其是自从去年温家宝总理把其纳入政府工作报告中以来更是如此。此题考查时间状语从句。主句用现在完成时,从句是一般过去时,常用since连接。故选C。

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