⑴ 
She's watching TV, A. but it starts to snow.
⑵ 
Ann is talking to her friend, B. but the bell rings.
⑶ 
He's walking in the park, C. but the telephone rings.
⑷ 
Jack is crossing the street, D. but his sister starts to sing.
⑸ 
He's reading a book, E. but a car comes.
