Peter was so excitedhe received an invitation from his friend to visit Chongqing.A. whereB

问题补充：

Peter was so excitedhe received an invitation from his friend to visit Chongqing.

A. where

B. that

C. when

D. why

答案：

A. where

B. that

(答案→)C. when

D. why

解析：考察状语从句。结合句意可知C正确。句意：当他收到来自朋友的让他去重庆的邀请的时候，Peter是如此的兴奋。