The rise of oil prices made scientists search for new energy resources ______ oil.
We must apply what we have learned to our daily work because in no case _____ from practice.
We can never expect _____ bluer sky unless we create _____ less polluted world.
--I feel so upset. I’m afraid my company will be closed because of the terrible economic crisis.--______! Things are not so bad as they seem.
Practicing Chinese Kungfu can not only _____ one’s strength, but also develop one’s character.
____ into English, the Chinese classic work The Journey to the West was found to have lost the beauty of its language.