题文
I am very sorry to have bothered you with so many questions in such a(n) ______.
| A．chance |
| B．opportunity |
| C．occasion |
| D．situation |
推荐试卷
I am very sorry to have bothered you with so many questions in such a(n) ______.
| A．chance |
| B．opportunity |
| C．occasion |
| D．situation |
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