Where is Shanghai?—It is ______ the east of China.[ ]

Is that your dog?—No.That is Peter’s dog. The brown one is________.

Do you know whether scientists have ________a good way to deal with Influenza H7N9 or not?—Not yet .But they’re trying their best.

I know the young man in green jacket ____brother is my good friend.

Do you know the man ________ visited the United States in February?–Yes. He is Chinese Vice-President Xi Jinping. He said it was his ____ visit to the United States.