Everything comes with ________ price;there is no such ________ thing as a free lunch in the world.
A.a;a B.the;/ C.the;a D.a;/
(2013·嘉兴一中月考)Many people agree that ________ knowledge of English is a must in ________ international trade today.
A.the;an B.a;/ C.the;the D./;the
(2013·泰州二模)In the market,vegetables are sold by ________ kilogram,I mean,by ________ weight.
A.the;/ B./;/ C.the;the D./;the
(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.
A.the;/ B./;the C.the;the D.a;a
(2013·无锡一模)The education of ________ young is always ________ hot and serious topic.
A./;/ B.the;a C./;the D.the;/
(2013·西安一中月考)As ________ unemployment is very high at the moment,it's very difficult for people to find ________ work.
A.the;/ B./;/ C.the;a D.an;the