_______ to find the book from the library, she decided to turn to her professor for help.

Tom has been out of work for two years, so he has difficulty______. 

.With a basket on her back, the little girl is walking along the stream with green grass and red flowers ____ on both sides.

To play fair is as important as ______.

Every time he had a chance，he would talk about the great difficulty he had        in the new country．