(2013·四川,7)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·陕西,18)I have heard a lot of good things about you ________ I came back from abroad.
A.since B.until C.before D.when
(2013·山东,28)________I have to give a speech,I get extremely nervous before I start.
A.Whatever B.Whenever C.Whoever D.However
(2013·山东,26)Mark needs to learn Chinese________his company is opening a branch in Beijing.
A.unless B.until C.although D.since
(2013·辽宁,24)One can always manage to do more things,no matter________full one's schedule is in life.
A.how B.what C.when D.where
(2013·江西,28)She says that she'll have to close the shop ________ business improves.
A.if B.unless C.after D.when