Only when Lily walked into the office ______ that she had left the contract at home.
A. | she realized | B. | has she realized |
C. | she has realized | D. | did she realize |
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Only when Lily walked into the office ______ that she had left the contract at home.
A. | she realized | B. | has she realized |
C. | she has realized | D. | did she realize |