He worked and studied very hard ___________he wanted to provide his family with the best money

He worked and studied very hard ___________he wanted to provide his family with the best money
could buy.这句表示因果关系用because,可以用as 吗?为什么?
英语人气:950 ℃时间:2020-03-19 20:20:26
优质解答
不可以,从语法角度可以,但句意不符合.as也可以表示原因啊?为什么不行?as引导原因状语从句时与“Because”和“since”引导的从句比较起起来语气最弱。 
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