Thomas Edison is often cited as an example of a great inventor who would never yield to hardships in his quest for new inventions and deserve his _ success.

[问答题]We all know talented people who never seem to reach their potential.These p

For example,a tree would certainly never grow and-|||-provide fuel in the form o

[单选题]A frequently cited example of the endangered species is the panda.A.worried

[主观题]A．nn has decided to be a great inventor when she grows up．（改为同义句）A．nn has _____a _____to be a great inventor when she grows up．

[单选题]It was well known that Thomas Edison ____________ theelectric lamp.A.discov

[单选题]It was well known that Thomas Edison _____ the electric lamp.A.discoveredB.

[单选题]It was well known that Thomas Edison _____ the electric lamp.A.discoveredB.

[单选题]It was well known that Thomas Edison __________the electric lamp.A.discover

An example of a client-server application on the Internet would be __________.A.

[单选题]I would never have believed it was possible if I ______ it with my own eyes.A． didn't seeB． don't seeC． won't seeD． hadn't seen