单项选择题
A.unless B.until C.if
A.picture B.photo C.view
A.cause B.reason C.result
A.up B.off C.on
A.done B.made C.produced
A.little B.afew C.few
A.from B.of C.in
A.with B.for C.about
A.meeting B.tomeet C.meet
A.service B.class C.kind
A.in B.for C.after