When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.
A. opportunity B. possibility C. occasion D. chance
When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.
A. opportunity B. possibility C. occasion D. chance
C
occasion 作可数名词时，意为“时机”，作不可数名词时，意为“必要”，本题中occasion意为“必要”。从句语法结构上看，本句中用opportunity（难得的）机会，chance（偶然的）机会均可，但按逻辑意思，应用occasion.