Question

【题目】—I heard his mother was ill.

—________ he didn't go to school.

A. Because B. Or

C. That's why D. So is why

Answer 1

【答案】C

【解析】句意：——我听说他母亲病了。——这就是他没去上学的原因。考查表语从句。why和because都可以引导表示原因的表语从句，但用法有别：前因后果用why，前果后因用because。根据句意语境，可知本句是前因后果式，故选C。