593.Director,Jack is ill,so he can't be here.
Then we'll have no choice but to give the performance ________ him.
A.except for
B.apart from
C.except
D.without
594.A wide range of postcards and other souvenirs are _____ sale in the visitors'center.
A.on
B.at
C.in
D.for
593.答案是D;根据上文Jack is ill,so he can't be here暗示，只好在没有他的情况下表演节目。
594.答案是A;on sale在上市，在（廉价）销售for sale待售。
