since英 [sɪns] 美 [sɪns]
1. How long since is it?
1. I haven't heard from him since last year.
1. It's been ten years since they married.
2. What have you been doing since I last saw you?
3. He must have taken the book since it isn't here.
A：Well, it’s not as crowded as we expected, isn’t it?
B：No, but it will be soon. Look, there’re two empty seats over there. Let’s get them before somebody else does.
B：Now let’s make ourselves comfortable since we’ve got quite a long way to go.
A：That’s a good idea.
A：Good afternoon. What