一道状语从句选择题There have been ten thousand visitors to the exhibition _英语解答

一道状语从句选择题
There have been ten thousand visitors to the exhibition since( ).
A.its openingB.it's opening
C.it opens D.one month

人气：376 ℃　时间：2020-10-01 19:53:10

解答

我认为选择a.a表示的是一个过去的时间点.翻译成"自从展览举办至今,以近与成千上万的人来过.'