【题目】______ you have seen he is in poor condition, you should understand why he has to take up two part-time jobs.
A. As long asB. UnlessC. Now thatD. While
在线课程【答案】C
【解析】
考查连词辨析。句意：既然你已经看到他状况不佳，你就应该明白为什么他不得不从事两份兼职工作。A. As long as只要；B. Unless除非；C. Now that既然； D. While尽管。根据题意，故选C。