—Have you looked todays newspaper?—Yes I have been looking for some information about t

问题补充：

—Have you looked todays newspaper?

—Yes, I have been looking for some information about tomorrows weather.

A. for

B. at

C. up

D. through

答案：

A. for

B. at

C. up

(答案→)D. through

解析：根据look for，look at，look up和look through分别的意思为寻找，看，查找和浏览的意思，句子的需要，可知答案为D。