A friend in need...Last week I was feeling stressed about my science homework, I asked my friend Nick to help. 'I'd explain it if I was free, but I'm quite busy." Nick and I get on well, and he's good at science, so I was disappointed. Next, I went to my neighbour. 'Sorry, Tom. If I understood the homework, I'd help you,' said Christina, "but it's difficult. Just then, a new classmate, Aris, heard us. He is popular, but we don't speak often because he's the kind of person who knows all the answers. He's a big-head. In fact, I fell out with him once because he was so bossy. 'I can help," he offered. That day, Aris explained the science homework to me carefully. Afterwards, we sat and chatted. We got to know each other and found we have a lot in common and the same sense of humour. I think we'll be good friends from now on. Find the sentence which has time connector.

Write the sentence and underline the time connector!​