[al:新概念英语（二）] [ar:MP3 同步字幕版（英音）] [ti:In or Out?] [by:更多学习内容，请到chazidian.com搜索“新概念”] [00:12.16]Why did Rex run away? [00:17.15]Our dog, Rex, used to sit outside our front gate and bark. [00:22.98]Every time he wanted to come into the garden he would bark until someone opened the gate. [00:30.25]As the neighbours complained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in. [00:41.32]Rex soon became an expert at opening the gate. [00:45.60]However, when I was going out shopping last week, I noticed him in the garden near the gate. [00:53.28]This time he was barking so that someone would let him out! [00:58.78]Since then, he has developed another bad habit. [01:03.34]As soon as he opens the gate from the outside, he comes into the garden and waits until the gate shuts. [01:11.71]Then he sits and barks until someone lets him out. [01:15.82]After this he immediately lets himself in and begins barking again. [01:22.11]Yesterday my husband removed the gate and Rex got so annoyed we have not seen him since.