The plan was that the two parties should first reach an agreement on the basic ________,the details to be worked but later.

As President Xi Jinping put it in Moscow on Saturday, China’s development creates more ______ than threats.

There is strong evidence that the          of a father increases the probability that a youngster will use drugs and engage in criminal activity.

A large sum of money has been raised for the          of the poorly-educated children in the mountainous areas．

Beijing Man used fire for cooking food and also for light, warmth and ________ wild beasts.