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________, the Internet was only used by the government．But now it's widely used in every field．

A．As usual

B．At first

C．After all

D．So far

At the Beijing Olympics, Bolt broke the 100-meter and 200-records and became the ________ man in the world．

A．fastest

B．heaviest

C．tallest

D．slowest

Which of the following can we NOT see at the Olympic Games?

A．

B．

C．

D．

I carried the bowl with both hands ________, so that I wouldn't break it．

A．carefully

B．happily

C．quickly

D．carelessly

The traffic rules say drivers mustn't drive if they are drunk, ________ they will be punished．

A．or

B．but

C．and

D．so

The people who are more confident have more ________ to make themselves successful．

A．education

B．chances

C．pride

D．excuses

Linda felt very ________ after the long way, so she stopped to have a rest．

A．surprised

B．shy

C．tired

D．excited

A/An ________ can use his drawings to tell about beautiful mountains, the blue sea and many other things．

A．actor

B．scientist

C．artist

D．doctor

________ the children have fun, parents can take dance lessons on the beach．

A．When

B．If

C．While

D．Once

The World Health Organization has given some advice on ________ to protect us from being infected(感染)with H7N9．

A．how

B．what

C．where

D．when