题目内容
—I saw David in the teachers’ office this morning. Do you know _________ he was there?
—He went there to hand in his homework.
A. how B. whether C. when D. why
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题目内容
—I saw David in the teachers’ office this morning. Do you know _________ he was there?
—He went there to hand in his homework.
A. how B. whether C. when D. why