单选题 "_________everyone' s here," she said," let' s begin to discuss the solution to the problems we have found."
【正确答案】 B
【答案解析】解析：词义辨析。as far as：至于，远到，就……而言；now that：既然，由于；so far：到目前为止，迄今为止；by far：到目前为止。根据句意，选B。