选择正确的应答语。
⑴Where are you?____ A. I'm talking to my friend.
⑵Excuse me. Where is the supermarket, please?____ B. I'm behind the tree.
⑶Thank you.____ C. Turn left.
⑷Where is the train? ____ D. It's at the station.
⑸What are you doing?____ E. You are welcome.
