The first decade in the 21st century the rapid rise of China as a world economic
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The first decade in the 21st century _______ the rapid rise of China as a world economic power
A.witness
B.has witnessed
C.will witness
D.have witnessed
试题答案
B
本题考查时态。根据句意：21世纪的前十年已经见证了作为世界经济强国中国迅速的发展。此处用现在完成时。主语是单数，故用has。