—I will tidy them up, Mum.

A：Hi, Ann. What are you doing?

B： I'm reading a book.

A：

B：I like Stories for Children best.

A：

B：Because the stories are very interesting. I can learn a lot. Do you like storybooks?

A：No, l like picture books.

B：

A：They are about pictures of different places in the world.

B：That's wonderful.

A：Look! He is over there. Let's ask him together.

B：OK.

    David is a schoolboy. One day, he goes back home from school. He feels ill. He has a stomachache. He says to his Mum, “I have a stomachache." His Mum brings him a cake and says, "Eat it. You have a stomachache because it's empty. You'll get well soon when you get something in it." He eats the cake and he feels better.

    After a while, his dad comes back. He feels ill, too. He says, ''I have a headache.' 'I know, Dad. That's because it's empty," says the clever boy with a smile, "You'll get well soon when you get something in it.”

请根据短文内容。从下面各题后所给的A, B, C三个选项中选出可以填入空白处的最佳答案。