给下列问句选择相应的答语.

⑴What do you do on National Day?                  A. Sounds good.

⑵Do you have a special meal on that day ?       B. Tree-Planting Day.

⑶Let's go to the concert.                                    C. Yes, it is.

⑷What is your favourite festival?                       D. Yes, we do.

⑸Is it in our town？                                            E. We fly the national flag.