Only when I put myself in their position ________ they were more miserable than me.
| A.I had known | B.had I known |
| C.I knew | D.did I know |
推荐试卷
Only when I put myself in their position ________ they were more miserable than me.
| A.I had known | B.had I known |
| C.I knew | D.did I know |
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