amous musician, as well as his students, ________ to perform at the opening ceremony of the 2012 Taipei Flower Expo

_he lives in a large flat and owns much money, he doesn’tseem as happy as before

We can get a lot of useful information on the Internet; ______, the Internet also provides us with a new way of communication

Mr. Black ________ for Shanghai in a few days. Do youknow when the earliest plane ________ on Sunday

With the _____________ of science and technology, people can talk with each other much more conveniently than before.–But China is still a __________ country, people have to work hard to live a better life.