问题描述：
Distinguished guests and friends,welcome to our school,the ceremony of the 50th Anniversary
Distinguished guests and friends,welcome to our school,____ the ceremony of the 50th Anniversary this morning are our alumni (校友) from home and abroad.
A.Attend B.To attend C.Attending D.Having attended
总觉得Attending做主语怪怪的,它前面要加个people吧?
Distinguished guests and friends,welcome to our school,____ the ceremony of the 50th Anniversary this morning are our alumni (校友) from home and abroad.
A.Attend B.To attend C.Attending D.Having attended
总觉得Attending做主语怪怪的,它前面要加个people吧?
问题解答：
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