2022齐齐哈尔统招专升本英语每日一题98

18. Not until I began to work ________ how much time I had wasted.

A.didn’t I realize B.did I realize

C.I didn’t realize D.I realized

18.【解法】B。解析：句意：直到开始工作，我才意识到我现在耗费了多少一段时间。Not until地处句首用半倒装，结构为“助词缀+主语+实义词缀”。故选B。