Question

The first few years 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

Answer 1

B

试题分析：考查时态题。根据The first few years in the 21st century可知应该用现在完成时。本句是无生命的东西作主语，此处的the past two years作主语。witness 解释为：见证了。句意：21世纪的前几年见证了中国做为经济大国的快速成长。选B。
点评：时态的考查主要看动词发生的时间，如果没有时间就看上下文，这题的解题关键是The first few years in the 21st century，说明是过去到现在一直做的事情。