—I find it very difficult to read ________ novel you lent me last week.
—Yes.It's necessary to have ________ good knowledge of history.

—What do you think of the manager of your company?
—Oh，he is ________ manager who's pleasant to work with.It's ________ pleasure to work with him.

Everything comes with ________ price；there is no such ________ thing as a free lunch in the world.

(2013·嘉兴一中月考)Many people agree that ________ knowledge of English is a must in ________ international trade today.

(2013·泰州二模)In the market，vegetables are sold by ________ kilogram，I mean，by ________ weight.

(2013·泰安一中月考)—John has put forward ________ most challenging question for us to answer.
—Yes，it really is.I have never heard ________ harder one.

(2013·无锡一模)The education of ________ young is always ________ hot and serious topic.

(2013·西安一中月考)As ________ unemployment is very high at the moment，it's very difficult for people to find ________ work.

(2013·昆明二模)The operation is ________ success and the patient is now out of ________ danger.

(2013·日照一模)Music is ________  universal language and it is one of ________    ways to learn about another culture.