--- 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 arrived
B. we had arrived
C. were we arriving
D. we were arriving
网友回答
A. has we arrived
B. we had arrived
C. were we arriving
(答案→)D. we were arriving
解析：可联系答.案.网客服索取。