Do you know the time____ the 2010 Shanghai World Expo opened?A、wh_英语解答

Do you know the time____ the 2010 Shanghai World Expo opened?A、which B、why C、when D、in which

人气：385 ℃　时间：2019-09-05 08:38:41

解答

C 定语从句先行词time在从句中作时间状语,所以应该填入表示时间的关系副词when