【题目】At a group wedding ceremony this Sunday I saw many newly-married couples, all of ______ were wearing a big smile on the face.
A.thoseB.themC.whomD.which
在线课程【答案】C
【解析】
考查非限定性定语从句。句意：在这个星期天的集体婚礼上，我看到许多新婚夫妇，他们都面带笑容。此处为非限定性定语从句，关系词指代先行词newly-married couples（指人）并在从句中作介词of的宾语，故C项正确。