The role that women have been ________ in human history is of great importance.
.---I’m sorry, but there’s no smoking room in this section on the train. ---Oh, I _____ that, and I won’t smoke again.
The advertisements in newspapers help to cut the _____ of making the newspaper.
The _____ of the exam nation show that you have all made great _____.
I love _____ history because it gives us _____ knowledge of past event.
Parents complain that _____ shown on TV will have bad influence on high school students’ moral _____.