【题目】The train had stopped _______ a mechanical problem and I just called to the engineer to repair it.
A.thanks toB.due toC.according toD.as to
在线课程【答案】B
【解析】
考查介词短语辨析。句意：火车因为机械故障停了下来，我打电话给工程师去修理。A. thanks to 幸亏；B. due to 由于；C. according to 根据；D. as to 至于，关于。分析句子，根据后句“给工程师打电话修理”可知，火车停下来是由于机械故障导致。故选B项。