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.