句子匹配。
⑴I'm listening to music A. but the teacher comes.
⑵Lucy is playing with her dog, B. but my friends come to play with me.
⑶The pupils are talking very loudly, C. but her mother calls her.
⑷A bus is coming, D. but it starts to rain.
⑸We are having a picnic, E. but there are too many people on the bus.