Social and economic development has contributed to an increasing______ for future．
A．demand B．curiosity
C．anxiety D．Arrangement
Today APEC is playing a more important role in the world stage，______ purpose is to promote economic cooperation in the Asia-Pacific area．
A．where B．whose C．when D．Which
Ning Zetao，who won a total of four golds at the 2014 Incheon Asian Games，____ himself as a new swim star．
A.distinguished B．described
C．Represented D．Developed
一____it snow tomorrow，what would we do?
一In that case，we'11 have to stay at home．
A．Will B．Must C．Might D．Should
The world is a book，and those who don’t travel read only one page．That’s____I’ll go on a tour this summer．
A．how B．why C．when D．Where
一Excuse me，sir．This is a non-smoking train．
一Oh，sorry．I____ know that．
A．haven’t known B．hadn’t know
C．didn’t know D．don’t know
