【单选题】He studied hard at school when he was young, __________ contributed a lot to his success.
【简答题】He was made ______ hard. A) to study B) study C) studying D) studied
【简答题】语言的谱系分类和语言结构类型的分类各自依据的标准是什么同系属的语言在结构上是不是一定相同为什么?
【单选题】Michael studied hard before the examination in mathematics, and it ______ . He made an A.
【单选题】He studied hard at school when he was young, ______ contributes to his success in later life.
【单选题】语言形式通常指语音、语法、词汇等语言的结构体系,也称为()。