【题目】Peter was so excited _________he received an invitation from his friend to visit Chongqing.
A. where B. that C. why D. when
在线课程【答案】D
【解析】
试题分析:考查时间状语。据分析，横线前没有先行词，所以判断从句不是一个定语从句。主句是一个主系表结构，从句的主谓宾语都齐全，所以从句是一个状语从句。句意：彼得是如此的高兴当他收到一个他同学要他去重庆的邀请。故选D.