He locked the door,______.A. thus made sure no one would interrupt himB. thus making sure no one would interrupt himC. though made sure no one would interrupt himD. although to make sure no one would interrupt him

步骤 1：分析句子结构
句子的主干是"He locked the door"，后面的部分需要分析其语法和逻辑关系。
步骤 2：确定逻辑关系
根据句子的语义，锁门和确保不被打扰之间存在因果关系，因此需要使用表示因果关系的连词或副词。
步骤 3：分析选项
A. thus made sure no one would interrupt him：使用了谓语动词made，与前面的locked构成双谓语，不符合英语语法。
B. thus making sure no one would interrupt him：使用了现在分词短语，表示伴随动作，符合语法和语义。
C. though made sure no one would interrupt him：though表示转折关系，不符合语义。
D. although to make sure no one would interrupt him：although表示转折关系，不符合语义，且to make sure不构成完整的句子结构。