Has the train _C_yet? A got to B reached C arrived D arrived at
分析：A有介词（PREP.）TO ,而前面没有WHAT,句子缺少成分,排除,B是及物动词（VT.）理由基本同上,排除,C是不及物动词（VI）,可以使用,D有介词AT,理由同A
---------------------------
He borrowed the book 2weeks ago.同义句
He has _KEPT_ the book _FOR_ 2 weeks.
因为有HAS,所以是现在完成时,BORROW是瞬间动词,而后面有FOR,表一段时间,要用延续性动词,KEEP（VT,保留）