Requests for paternity tests(亲子鉴定) by Chinese men ______ (increase) in recent ye

游客2023-09-28 49

问题 Requests for paternity tests(亲子鉴定) by Chinese men ______ (increase) in recent years.

选项

答案 have increased

解析动词时态。根据时间状语in recent years(通常用于完成时态)，此处需用现在完成时。[例句] In recent years，oil has substituted for certain natural materials．近年来石油已取代了某些天然材料。

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