He______two thousand trees since 2001.A、plantedB、has plantedC、will plantB考查时态

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问题 He______two thousand trees since 2001.

选项 A、planted
B、has planted
C、will plant

答案 B

解析 考查时态。时间状语由“sinace+时间点”构成时,句子谓语动词用完成时态。
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