题目内容
Tom answered the question, and the teacher smiled at him _______ he had given the best answer.
A. as if B. in case C. while D. though
A
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---Tom. answer my question.
---Oh, sorry, ______. I beg your pardon?
| A.I didn’t get that | B.Say it again |
| C.Don’t mention it | D.That’s all right |