（ ）he wasn't ready in time, we had to carry out the plan without

（ ）he wasn't ready in time, we had to carry out the plan without him.
A、Although
B、As
C、Despite
D、Because of
【正确答案】：B
【题目解析】：本题考查状语从句的因果关系，前半句是因，后半句是果，四个选项中只有B和D表示原因，第四个选项不能连接句子，所以选择B