- Been practicing your song?
- Mm-hmm.
- Know your parts today?
- Mm-hmm. Sure.
- I knew mine yesterday.
- Is that so?
- Hey, don't.

7 seconds sound clip from the Love Affair (1939) movie soundboard.

You can hear this line at 01:02:34.238 in the Blu-ray version of the movie.

Quote context

[...]

- Monsieur Michel, she gave me this to send to you. I was going to mail it today. She said it was for the young lady that was here with you.

(CHILDREN SHOUTING, CLAMORING)

- Hello, Miss McKay.

- Oh, hello.

- How are you feeling?

- I'm all right. How are you?

- Fine.

- How are you, Patty Jane?

- Fine.

- She's got on a red flannel pettiskirt.

- Oh. Well, it's warmer.

- Oh, I bet it is.

- Been practicing your song?

- Mm-hmm.

- Know your parts today?

- Mm-hmm. Sure.

- I knew mine yesterday.

- Is that so?

- Hey, don't.

- Oh, come on, come on. Come on, let's try it. I've been practicing too. Wait'll you hear me. One, two...

- Wishing will make it so, just keep on wishing and care will go.

- Dreamers tell us dreams come true, it's no mistake, and wishes are the dreams we dream when we 're awake.

- The curtain of night will part if you are certain within your heart.

[...]