Question

【题目】Only then ______ that he had lost a chance of achieving his dream.

A. he realized B. did he realized C. did he realize D. he did realize

Answer 1

【答案】C

【解析】解析：句意：直到那时，他才意识到自己失去了一个实现梦想的机会。本句时态应为过去时，Only+状语（副词、介词短语、从句）放在句首时要用部分倒桩。故答案选C。