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

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

end 。。。。。。。。。

end
.