题目内容：
根据下面一段对话内容，从对话右边方框内的选项中选出能填入空白处的最佳选 项，其中两项为多余选项．
A：Oh, hi, Tess! I'm sorry. I'm thinking about something.
B：_____ 16______
A：I am. I have a chance to go on a tour.
B：A tour? What kind of tour?
A：A music tour. ______17______
B：Wow! That's great. They are pretty famous.
A：______18______
B：So you're going to do it?
A：I don't know.______ 19______
B：It sure would! Where will the tour go?
A：______ 20______
B：How long is the tour?
A：Four months.
B：OK, wish you a happy travel!
A ：Thank you!
A. This tour is the chance of lifetime.
B. It goes all over North America and South America.
C. It looks like you're dreaming about something.
D. You'll have to quit school and your job at the store.
E. My agent wants me to go on a tour with Art's Jazz Band.
F. Have you told anyone about this yet?
G. It would be a great opportunity!
参考答案：
答案解析：