F: This piece is too difficult for me. Can I practice an easier one at home? ,M: Your piano playing will improve a lot if you try to master this song. ,F: OK. I hope my parents won't get tired of hearing the same thing all week.
(A) M: Dear daughter, try hard to play the piano. (B) M: Dear classmates, you should try hard on your math. (C) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) M: They will understand you. The only thing you need to do is try to master this song.
D