问题描述：
Did you listen to the speed from beginning to ____?No,it was so boring that I fell asleep.
根据对话内容，写出句中所缺单词
根据对话内容，写出句中所缺单词
问题解答：
我来补答展开全文阅读
问题描述：
问题解答：
我来补答