What happened in that country can easily upset the ______ balance of power in that area.A．

What happened in 1869 in San Francisco, according to the passage？A．Gold was discovered in

Although______happened in this developed country sounds like science fiction, it could occ

"It happens that he was in business. " The sentence means that______.A．He happens to be on

What apparently had happened, three years ago, was that Kate _____ to a different buildi

Although ______ happened in the developed country sounds like science fiction, it could oc

According to the passage, what will happen if we hold that science is getting beyond c