--You forgot your keys when you left home in the morning. --Good heavens, . A. s
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--You forgot your keys when you left home in the morning.
--Good heavens,___________.
A. so did I. B. so I did. C. so you did. D. so did you.
试题答案
B
解析:
本题是省略的用法考查。注意两人对话中的you和I是同一个人，所以用so +I+did。