The first decade of the 21st century _____ the breathtaking and non-stop development of China.
A．witnessesB．witnessedC．will witnessD．had witnessed
B

試題分析：本題的關(guān)鍵詞是句子的主語the first decade of the 21st century指過去的一段時間，做主語的時候謂語動詞使用一般過去時。句義：21世紀最初的10年見證了中國令人窒息的不停頓的發(fā)展。故B正確。
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