【题目】________ you have seen he is poor, you should understand why he has to take up two part-time jobs.
A. As long asB. Unless
C. Now thatD. While
在线课程【答案】C
【解析】
考查连词。句意：既然你已经看到他很穷，你就应该明白他为什么要做两份兼职工作。A. As long as只要；B. Unless除非；C. Now that既然；D. While然而。结合前后两句的句意可知，这是个原因状语从句，结合四个选项可知，要用now that引导，故选C。