Question

【题目】It was not until I suffered hair loss ________I realized the harm of staying up late.

A. whenB. that

C. whichD. what

Answer 1

【答案】B

【解析】

考查not until的强调句型。句意：直到我脱发，我才意识到熬夜的危害。分析句子结构可知，此处为not until的强调句型，其基本结构为：it is+not until+被强调部分+that+其余部分，故B项正确。