【单选题】 Although there arc many predictions about the future, no one knows for sure ______the world would be like in 50 years.
A.how
B.that
C.which
D.what
网考网参考答案:D
网考网解析:
[解析] 谓语动词knows后面的宾语从句中缺少一个引导词,根据句意和,结构,该引导词应在从句中作 like的宾语,表示什么样,故只能用what。
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