56.According to the information, taking part in a foreign exchange program can cost _______.
A.from $6,000 to $8,000 B.from $3,500 to $8,000
C.anything from $3,500 D.no more than $7,000
54.A.good luck B.happy New Year C.merry Christmas D.happy birthday
53.A.Watching B.Seeing C.Guessing D.Admitting
52.A.stuck in B.attached to C.tied to D.involved in
51.A.noise B.confidence C.cheer D.optimism
50.A.announced B.accepted C.played D.offered
49.A.opposite B.beyond C.out D.within
48.A.noticed B.slept C.lied D.lay
47.A.managing B.attempting C.happening D.deciding