听录音，从所给选项中选出你所听到的内容。
1. — What's your mother doing? — She is _____________ a book.
A. buying
B. reads
C. reading
2. I am _____________ morning exercises now.
A. doing
B. do
C. does
3. — What are you doing? — I am _____________.
A. having dinner
B. swimming
C. having lunch
4. Look, the girls _____________ now.
A. is sing
B. are singing
C. are dancing
5. — Are you _____________ sports now? — Yes, I am.
A. doing
B. having
C. playing
