企源知识库

He was asked to speak louder ______ all the other students in the classroom could hear him.
A、as
B、so as to
C、so that
D、so as
【正确答案】：C
【题目解析】：as因为；so as to为了，其后接短语，不能接完整的句子；so that以至于；so as只要句意：他被要求说大声一点，好让教室里的其他同学都能听见。