I am preparing for CAE advanced, but I need to revise some aspects. By the way, I am filling in the right verb in use of english part 1.
This is the piece:
But closer inspection reveals a milky surface covered in enamel dots, which ______ about two thirds of light.
The choice is between put down, put out, cut down, cut out.
Could you please give me some useful hints about the correct use of this kind of phrasal verbs? I can't sincerely figure out the right meaning of these verbs, moreover it happens that often these verbs have the same meaning.