—Why didn’t you go out to meet the new forging teacher?
—I would have, but I the spelling mistakes in my homework.
A. corrected
B. was correcting
C. had corrected
D. would correct
网友回答
A. corrected
(答案→)B. was correcting
C. had corrected
D. would correct
解析：参考时态。句意：你为什么不出去见见我们新的外教老师？——我想，但是我正在修改我作业中的书写错误。结合语境可知本句描述的是过去正在进行的动作，故用过去进行时态。选B。