(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
(2013·昆明二模)The operation is ________ success and the patient is now out of ________ danger.
A.a;the B.a;/ C./;the D./;/
(2013·咸阳二模)—Have you seen ________ pen?I left it here this morning.
—Is it ________ black one?I found it in the corner.
A.a;the B.the;the C.a;a D.the;a