We had to interview our partner and to present him to the class.

interview 是动词，意思是"采访、面试"，指通过提问来获取信息或评估对方。这个词由前缀 inter-（表示"相互"）和 view（"看、观点"）组成，字面意思是"相互查看"，引申为"面对面交流以获取信息"。