I knew, of course, that it was my duty to do that.

But it seems to me that you have quite forgotten YOUR duty." "My--duty ?" Pollyanna's eyes were wide with wonder.
"Certainly.

I know it is warm, but I consider it your duty to keep your windows closed till those screens come.

Flies, Pollyanna, are not only unclean and annoying, but very dangerous to health.

After breakfast I will give you a little pamphlet on this matter to read." "To read?
Oh, thank you, Aunt Polly.