He________a good knowledge of Chinese history.You can ask him about the ancient china.[ ]

re people in Shanghai have been ________ to beinfected with the deadly H7N9 bird flu, local authorities said on Sunday.

If you have any trouble, be sure to call me.—__________________________.

The food is really excellent in this restaurant. Many people come here to eat.

You could have asked Mr. Richard for help. He’s kind-hearted.— Yes. But that _______ him a whole day.