()everybody is here ,let's begin the meeting
问题描述:
()everybody is here ,let's begin the meeting
为什么不甜now 或because as要填since
答
now 不是连词.
since 表原因的语气比as强 ,且比它正式.该语境是开会 ,故since 更为合适.
because表原因的语气太重.该语境中并没有特意强调原因.