the unreasonable individual income ­_______, the gap between the rich and poor has become an outstanding issue.

The reason__________ their failure you know is _____they didn’t get fully prepared for the experiment.

World Expo 2010 Shanghai China, a grand-scale global event, has ______ the significant theme “Better City, Better Life.”

ew technology, pictures of underwater valleyscan be taken ____ color

I didn’t meet her at the party yesterday. She____for Shanghai.