问题
选择题
Over the past 40 years, 29 other Chinese people ____ Mount Qomolangma successfully.
A．climbed
B．have climbed
C．had climbed
D．climb
答案
答案：B
根据时间状语在过去的四十年里，可知句子为现在完成时态，故选B。
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Over the past 40 years, 29 other Chinese people ____ Mount Qomolangma successfully.
A．climbed
B．have climbed
C．had climbed
D．climb
答案：B
根据时间状语在过去的四十年里，可知句子为现在完成时态，故选B。