2019年mba考试英语模拟题——连词948

{01}________ I had walked for six hours, I was tired out. A.After B.Before C.When D.As 解析：本题考查以after引导的时间状语从句，意为“在…之后”。句意为“步行了六小时后，我累坏了”。
本题选A。
{02}--Shall Mary come and play computer games?
--No,__________ she has finished her homework. A.when B.if C.unless D.once 解析：本题只要理解了句意就能很容易地选出unless。句意为：“玛丽要来打电脑游戏吗?”“不，除非她完成了作业。”
本题选C。
{03}________ is quite natural,a beginner can"t read the books written in English
very quickly. A.Which B.As C.What D.It 解析：本题是连词的使用考查。as引导非限制性定语从句，表示“正如……那样”的含义。
本题选B。