—Simon，I wonder . —Last Saturday.
A. when the foreign visitors arrived
B. when did the foreign visitors arrive
C. when the foreign visitors will arrive
D. when will the foreign visitors arrive
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(答案→)A. when the foreign visitors arrived
B. when did the foreign visitors arrive
C. when the foreign visitors will arrive
D. when will the foreign visitors arrive
解析：考查情景交际和宾语从句。“西蒙，我想知道那些游客是什么时候到的。”“上周六。”宾语从句用陈述句语序，排除B、D；根据Last Saturday可知，用一般过去时，排除C。故选A。