More than 200 dead pigs in the waterways have raised urgent concern.
A．found B．being found C．to be found D．having found
—Professor Smith, can I meet you at 10 o’clock tomorrow morning?
—Oh, I’m sorry. I a lecture at Hunan Normal University.
A．give B．am giving C．will give D．will be giving
Chinese President Xi Jinping promised on Sunday, “We’ll make great efforts the Chinese dream.”
A．achieving B．achieved C．to achieve D．to have achieved
President Hu Jintao has met with _______ UN Secretary General Ban Ki-moon at the Great Hall of the People in Beijing. President Hu welcomed Ban's China _______ and his attendance at the Shanghai World Expo.
A．visiting; visit B．to visit; to visit C．visited; visiting D．visiting; visited
Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.
A．which B．what C．when D．how
There was no sign _______ they had died from diseases such as bird flu - the main worry in such cases. Among the theories was _______ a truck had collided（碰撞）with the crowd.
A．/; that B．that; that C．that; which D．that; /
