the reason for his success is __________he worded hard a.that b.for c.because d.why 选项及分析
问题描述：
the reason for his success is __________he worded hard a.that b.for c.because d.why 选项及分析
答
选择a 这是一个从句,表示原因 前面是结果,that 引导的从句表示原因
另外 这句话 的后面的词应该是worked hard