题目内容
Over the past 40 years, 29 other Chinese people ____ Mount Qomolangma successfully.
| A.climbed | B.have climbed | C.had climbed | D.climb |
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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题目内容
| A.climbed | B.have climbed | C.had climbed | D.climb |