1．One of the main themes of the summit meeting was “sustainable development”， or the question ________ we can continue developing the world without damaging the environment.
A．what B．how
C．why D．that
答案：B 本题题意：峰会的议题之一是“可持续发展”，即我们如何在不破坏环境的前提下使世界持续发展的问题。本题考查同位语从句。在同位语从句中，主要成分完整，不需要连接代词引导，排除what. 含义和“方式”有关，采用连接副词how.
