You shouldn't have written in the（） since the book belongs to the library.

单项选择题We shall send you commercial invoice, bills of lading and insurance certificates so that you can （）the goods on a D P basis.

A. consume
B. complain
C. concern
D. claim

单项选择题Things went well for him during his early life but in middle age his （） seemed to change.

A. chance
B. luck
C. career
D. opportunity