将问题与相应的答案连起来。
1. What are you doing?                   

A．Yes, they are. 2. Is her birthday in June?

B．It's May the 5th. 3. What's the date?

C．I'm answering the phone. 4. What do you do on the weekend?

D．Yes, it is.

5. Are they doing an experiment?          E. I often going hiking.