问题
选择题
-Do you know ?
-Two weeks ago.
A．when did John join the club
B．how often does Jolm drink milk
C．when John arrived in China
D．how soon will John come back
答案
答案：C
题目分析：句意：---你知道John什么时候参加俱乐部？---两个星期前。宾语从句采用陈述语气。答句是回答时间，因此应用when问。根据题意，故选C。