Much to our joy, John was finally __________ to join in our adventurous journey. 

The old couple wanted to sell their house and ______ it in a newspaper.

It suddenly        to the teacher that he hadn’t left any assignments(作业) to his students.

(2014·安徽皖南八校三联)A positive attitude，________with willingness to seek appropriate help and exercising solid study habits，will do much to determine how well you do in your studies.

With economy developing at great speed, our city has _____ quite a few changes in recent years.