____ everyone is here,let's begin the meeting.A:Since B:So C:Before D:But

问题描述:

____ everyone is here,let's begin the meeting.A:Since B:So C:Before D:But
请问这题选什么呢?因为我真的不明白,
___ everyone is here,let's begin the meeting.
A:Since B:So C:Before D:But

选A
这里是因果关系:因为大家都在,所以我们开始开会吧.CD排除
逗号前面是原因,所以B不对,选A Since表因为