Knowing office rules—whether _____ or not—is critical, especially for young job seekers.
My brother likes eating very much but he isn't very _____ about the food he eats.
It isn't quite _____ that he will be present at the meeting.
Some friends tried to settle the quarrel between Mr. and Mrs. Brown without hurting the feeling of____ , but failed .
As civilization______, more and more people have realized the importance of preserving rare animals from extinction.
—How do you_____to her unkindly behavior?—Only silence. Which of the following is wrong?