求以下英语句子的成分分析,最好说出是什么种类和句型
问题描述：
求以下英语句子的成分分析,最好说出是什么种类和句型
1.Two men took the parcel off the plane and carried it into the Customs House.
2.While two detectives were keeping guard at the door,two others opened the parcel.
3.To surprise,the precious parcel was full of stones and sand.
答
1.Two men主语 took谓语 the parcel宾语 off the plane介词短语作宾补 and并列连词 carried谓语 it宾语 into the Customs House介词短语作宾补.
2.While连词（时间状语从句） two detectives主语 were keeping guard at复合谓语（过去进行时态） the door宾语,（主句）two others主语 opened谓语 the parcel宾语.
3.To surprise介词短语作修饰句子的状语,the precious parcel主语 was系动词 full 表语 of stones and sand介词并列短语作表语的补语.