句型“It’s / It has been + 一段时间 + since + 时间状语从句”中,译作“自从…以来, 已经…(时间)了”。如 It’s / has been three months since he moved to this city. 要求:主句的谓v.用一般现在时或现在完成时;从句的谓v.用一般过去时,而且须是终止性动词
两种用法都对呀,即 It's years since we last met. / It's been years since we last met. ********************************************************* 如果不明白,请再问;如果对你有所帮助, 请点击本页面中的“选为满意回答”按钮,谢谢...