Determination is a kind of basic quality and this is what________ takes to do jobs well.

(2013·山东济宁模拟)When you are done with the book, go out for a walk or ________.

There are lots of flowers on ______ sides of the street.

---Have you heard of this new computer brand, Mike?---Yes, of course and I’ve decided to buy _____. 

—Is David a man with good manners ?—I don’t think so . As a matter of fact , he is         but polite .