问题
选择题
The problem is so complex that I'm afraid it will take me several hours to________.
A.put out
B.set out
C.break out
D.figure out
答案
答案:D
D 考查短语辨析。put out熄灭,生产;set out出发,着手;break out爆发,突然发生;figure out算出,解决。句意:这个问题如此难,因此我认为我不得不需要花费几个小时来解决它。