问题
选择题
Since Jack was laid off from his job three months ago, he a new one, but without luck.
A．looked for
B．bad looked for
C．is looking for
D．has been loking for
答案
答案：D
题目分析：考查时态：句意：自从杰克三个月前被解雇后，他一直在找个新的工作，但是不走运。时间状语是since引导的，主句应该是现在完成时或现在完成进行时，这里强调动作一直在进行而且可能还要进行下去，用现在完成进行时，选D。