题目

Our country is developing at an amazing speed，which is________makes me feel so proud. A．what　                            B．why C．that　                            D．where 答案：A 解析：　which引导的非限制性定语从句代替前面的整个句子。定语从句中又包含了一个表语从句，因为从句中缺少主语，故用what引导。

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