—Coach,can I continue with the training?
—Sorry,you can’t________you haven’t recovered from the knee injury.(2012·重庆,30)
A.until B.before
C.as D.unless
________hard you try,it is difficult to lose weight without cutting down the amount you eat. (2012·湖南,32)
A.However B.Whatever
C.Whichever D.Whenever
Everything was placed exactly________he wanted it for the graduation ceremony.
(2012·天津,14)
A.while B.when
C.where D.though
He smiled politely ________ Mary apologized for her drunken friends.(2012·山东,27)
A.as B.if
C.unless D.though
I don’t believe we’ve met before,________I must say you do look familiar.
(2012·新课标全国,25)
A.therefore B.although
C.since D.unless
It’s not easy to change habits,________ with awareness and selfcontrol,it is possible. (2013·重庆,23)
A.for B.or
C.but D.so