昨天

你好Helen!

不好意思我们昨天部见。I'm not sure if you forgot about it, but last week we talked about moving this week's lesson to August 9th, since I won't be available this Thursday. I sent you a message on Skype 7:20pm (EST)　yesterday. It's okay, though．：）Just wanted to see if we had a misunderstanding about the time, or if there was some kind of internet connection problem.

到底，再我不会作这个星期的课所以19号我们“见”吧，好不好？

谢谢！：）

Chris