题目详情
单选题 Which of the following sentences use the conditional perfect tense correctly
A. If I had known, I would have told you
B. If I know, I would tell you
C. If I knew, I would have told you
D. If I had known, I would tell you
E. If I had known, I would have been telling you

学科:默认课程
时间:2025-09-30 16:22:27
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