1.关于比较结构省略,省略的是相同的主谓语 2.关于meaning的理解前半句的意思,in the six month(是整个句子的时间状语)把c补全就是Most of the country’s biggest daily newspaper had lower circulation in the six months from October 1995 through March 1996 than (most of the country’s biggest daily newspaper did)in a similar period a year earlier 而反观d选项,in a similar period 是向前修饰that(circulation)相当于是定语而不是后句的时间状语
A没有比较对象了吧,前面是circulation in the six months,是一段时间内的情况,后面也应该是在另外一段时间的情况,不能直接和月份比较啊,至少应该是in a similar period 根据前面一个同学说的常见结构, 1)the circulation in X is lower than THAT in Y ;2) have a lower circulation in X than IN Y…这题C是最优的