A working party has been set up to the financial problem of the company.A. look upB. look

问题补充：

A working party has been set up to the financial problem of the company.

A. look up

B. look into

C. look back

D. look through

答案：

A. look up

(答案→)B. look into

C. look back

D. look through

解析：本题的含义是建立工会是为了调查公司的财务问题，look into可以表示调查的意思，故本题选B。