In the history of Chinese revolution, Taierzhuang Battle was a ________ battle in which both sides suffered heavy losses.

--- Jim has his wife do all the housework! Isn’t he wise?--- Not really. He is _______.

The population of China ___ than ___ of any other country in the world.

Everything is so expensive now.It is hardly ___ to save money.

Students are ____for new knowledge to suit themselves to the future jobs in various fields_______ which they are unfamiliar.