(2013·高考陕西卷)I have heard a lot of good things about you________I came back from abroad.
A.since B.until
C.before D.when
(2013·高考江西卷)She says that she’ll have to close the shop________business improves.
A.if B.unless
C.after D.when
(2013·高考四川卷)He is so busy.He cannot afford enough time with his son________he wants to.
A.even if B.as if
C.because D.before
(2013·高考安徽卷)It’s much easier to make friends ________ you have similar interests.
A.unless B.when
C.even though D.so that
(2013·高考湖南卷)You must learn to consult your feelings and your reason________you reach any decision.
A.although B.before
C.because D.unless
(2013·高考江苏卷)In the global economy,a new drug for cancer,________ it is discovered,will create many economic possibilities around the world.
A.whatever B.whoever
C.wherever D.whichever