问题描述：
John,someone in your class phoned you this morning.--Oh!Who was ____
--John,someone in your class phoned you this morning.
--Oh!Who was ____
A.he B.she C.it D.that
--John,someone in your class phoned you this morning.
--Oh!Who was ____
A.he B.she C.it D.that
问题解答：
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