【答】 attend 可作
及物动词，意为“参加”。例如：1. They had a quiet wedding—only a few friends attended. 他们的婚礼静悄悄的，只有几个朋友参加。2. Did you attend the meeting? 你参加那次会议了吗？attend at 意为“参与……（方面的活动）”。例如：1. They regularly attended at church. 他们定期去教堂
做礼拜。2. He attended only one year at college. 他只读过一年大学。attend on意为“侍候”。例如：1. She has many servants attending on her. 她有许多仆人侍候她。2. She has been attending on her sick mother for years. 她侍候生病的母亲已经许多年了。attend to 意为“办理” 、“注意”、“照看”、“注意听”。例如：1. Who will attend to the baby? 谁照料这个婴儿？本回答被提问者采纳