题目内容
One of the main themes of the summit was “sustainable development”,or the question _________ we can continue developing the world without damaging the environment.?
A.what B.how C.why D.that ?
B?
解析:
本题考查的是同位语的表达。we can continue developing the world without damaging the environment.是作同位语来修饰the question的。
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