--- I didn’t believe you made such a mistake.
---Oh, I’m sorry. I did it ___________. I’m serious.
A.on purpose | B.by accident | C.by the way | D.as for |
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--- I didn’t believe you made such a mistake.
---Oh, I’m sorry. I did it ___________. I’m serious.
A.on purpose | B.by accident | C.by the way | D.as for |