1.What I want to find(主语部分,这个句子整体上是主语从句） is a pen that（指代pen这个宾语,这里的宾语作表语be后,that引导定语从句,做宾语）my father gave me as a gift.2.I really want to know more about Mr Chen and his lecture that most students like .(喜欢这位老师和他的课）