The Internet has brought ______ big changes in the way we work.A．aboutB．outC．backD．up

The convenience of using computers has brought about a lot of__________ in classroom teach

A huge amount of environmental damage has been brought_____by the destruction of the rainf

It can be learned from the passage that Internet history has______.A．been filled with wars

The Internet has brought______big changes in the way we work.A．aboutB．outC．upD．back

It is generally agreed that the Internet has brought people together______.A．more than any

The drought in Europe has brought about all the following problems except ______.A.below-n