IT IS (A) DIFFICULT TO WRITE RULES (B) THAT TELL EXACTLY (C) WHEN W...
48.
It is (A) difficult to write rules (B) that tell exactly (C) when we should apologize,(D) as it is not difficultto learn how to do it.48.
It is (A) difficult to write rules (B) that tell exactly (C) when we should apologize,(D) as it is not difficultto learn how to do it.