“Goodbye, then,” she said, without even ________ from her book.
The members of the club wouldn't run a _____ in entrusting(委托) the organization to an unreliable person.
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.