2019年mba考试英语模拟题——连词680

{01}Several weeks had gone by____________I realized the painting was missing. A.as B.before C.since D.when 解析：本题考查连词的用法。时间had passed(gone)by before S + did…在不知不觉中过……（已过去了）。
本题选B。
{02}________ the Internet is of great help, I don’t think it’s a good idea to spend too much  time on it. A.While　 B.As　 C.Because　 D.If 解析：while引导让步状语从句符合句意，此处意思“尽管---”。
本题选A。
{03}33. He waited until it was dark ____ nobody could see him clearly. A.so that B.in order to C.although D.However 解析：目的状语从句要用in order that或so that引导。
本题选A。