四六级考试

【单选题】 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 realize

网考网参考答案：B
网考网解析：
[分析] 此题考查倒装句的用法。否定词not在句首，要求用部分倒装的句子结构。 查看试题解析出处>>