(2013·湖北，22)Carbon dioxide, which makes a________between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.
A．difference B．comparison
C．connection D．barrier
(2013·湖北，21)Poetry written from the________of the urban youth tends to reveal their anxiety over a lack of sense of belonging.
A．perspective B．priority
C．participation D．privilege
—The patient looks much better.________ is it that has made him ________ he is today?
—Perhaps the special medicine and his family's patient care.
A．What；that B．That；that
C．What；what D．What；which
Nobody would stand out admitting the fact，for some reason，________ they lost the game.
A．that B．which C．what D．why
David Beckham has ________ it takes to become a professional football player.
A．who B．what C．which D．that
________ has been mentioned above，continued chairman after he took a sip of coffee，________ the project must be carried out before spring flood comes.
A．As；that B．That；which
C．This；which D．It；that
