1．判斷句子的主干屬于哪一種結(jié)構(gòu)
A.（S+V）B.（S+V+P）C.（S+V+O.）D.（S+V+O+O.C）E.（S+V+I O+DO）
The young king died when he was just 19 with his body buried in a tomb filled with objects that people believed he would need in the afterlife.

2．Analyze the structure of the following sentence："Her first impression was that English was difficult."（　?。?/div>

3．判斷以下句子的主句屬于哪一種結(jié)構(gòu)A.主+謂 B.主+系+表 C.主+謂+賓 D.主+謂+賓+賓補(bǔ)E.主+謂+雙賓語(yǔ)
Saying that planting trees and protecting nature are traditional virtues of the Chinese nation，Xi Jinping urged efforts to further advance voluntary afforestation activities nationwide.