--- Did you telephone Uncle Sam our plan for the Christmas holidays on his farm?
--- Yes, he was happy about our arrival, and he eagerly asked when ______.A.has we arrivedB.we had arrivedC.were we arrivingD.we were arriving
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D解析试题分析：考查时态。句意：——你打了电话给Sam大叔告诉他我们会到他的农场过圣诞节的计划吗？——是的，他很高兴我们会去，并且急切的问我们什么时候会到。从动词was 及asked信息词可知与过去有关，排除