关于状语从句和强调句

问题描述:

关于状语从句和强调句
Was it at the meeting on September 20 2007,______ was held in Xi'an,______ Zhou Liang made a speech?
A.when;that
B.which;where
C.which;that
D.that;where

C
这里的强调是Zhou Liang made a speech at the meeting on September 20 2007.后面的是which引导的定语从句修饰meeting.