6.Michael: The Johnsons are moving next week. We are going to have a going-away party for them Saturday.
Tracy: I didn’t realize they were moving so soon. _____

Michael: Yes, but we’ll have one last chance to get together. We’re planning a barbecue.

(3分)
A. Wish them a happy journey.
B. May they have a more comfortable home.
C. They are really going to be missed.
D. We can’t stay together forever, can we?