题目内容

How old was the baby when he learned to say that word correctly?点击开始播放听力mp3:{MP3:http://wximg.233.com/attached/media/20130805/20130805104519701970.mp3}回答下面的题目:When do you think this conversation took place?

About 18 months.
B. About 21 months.
C. About 24 months.
D. About 12 months,

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