2019年mpa考试英语真题——连词269

{01}The elderly patients still prefer the traditional way, ______ online booking system is supposed to be convenient and fast. A.while B.though C.unless D.as 解析：考察连词辨析。A当…时，然而；B尽管；C除非；D因为，一边…一边…；结合句意可知B正确。句意：尽管在线的预定系统很方便迅捷，但是那位年长的病人仍然喜欢传统的方法。
本题选B。
{02}Edison was a clever boy, and ______ he was fourteen, he had learned advance mathematics by himself. A.whenever B.by the time C.the moment D.ever since 解析：考察时态。By the time到…时为止；根据he had learned advance mathematics by himself中的过去完成时，可知所选择的连词是与完成时连用的，结合句意可知Ｂ正确。句意：爱迪生是一个聪明的孩子。到他１４岁的时候，他已经自学了高等数学。
本题选Ｂ。