David （ ） his company's success to the unity of all the staff an

David （ ） his company's success to the unity of all the staff and their persevering hard work.
A、contributed
B、attributed
C、distributed
D、disputed
【正确答案】：B
【题目解析】：本题考查动词辨析。contribute：捐助，贡献，促进，投稿。attribute：把…归于…。distribute：分配；散布；分开。dispute：辩论；怀疑；阻止；抗拒。句意：大卫把公司的成功归功于全体员工的团结和他们坚持不懈的努力。