At one time, ________were the only practical way to cross the vast areas of the west.
A. buses
B. bikes
C. trains
第(31)题答案是
A. features
B. personalities
C. characteristics
D. identities
26__________
A. each
B. altogether
C. long
D. respectively
Mr.Benn disagreed with the manager about
A. product promotion.
B. customer relations.
C. pricing policy.