Question

【题目】The reason ______he didn't come was ______he was ill.

A. why; thatB. that; why

C. for that; thatD. for which; what

Answer 1

【答案】A

【解析】

：

试题the reason why...为固定句型“...的原因是...”而后面的he was ill是一个完整的句子，不缺少任何的成分，所以用that连接。句意：她没能来的原因是他生病了。