句子匹配。⑴I'm listening to music {#blank#}1{#/blank#} A. but the teacher comes.
⑵Lucy is playing with her dog,{#blank#}2{#/blank#} B. but my friends come to play with me.
⑶The pupils are talking very loudly,{#blank#}3{#/blank#} C. but her mother calls her.
⑷A bus is coming,{#blank#}4{#/blank#} D. but it starts to rain.
⑸We are having a picnic,{#blank#}5{#/blank#} E. but there are too many people on the bus.
