题文
I would have come earlier, but I _____ that you were waiting for me.
| A.didn’t know | B.hadn’t known |
| C.haven’t known | D.wouldn’t have known |
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I would have come earlier, but I _____ that you were waiting for me.
| A.didn’t know | B.hadn’t known |
| C.haven’t known | D.wouldn’t have known |
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