45 ___
A: They were protected by a strong United States Navy.
B: They were supported by a well-developed railroad system.
C: Most crew members had experience on foreign ships.
D: As part(?) owners of the ships, captains got some of the profits.
A: They were protected by a strong United States Navy.
B: They were supported by a well-developed railroad system.
C: Most crew members had experience on foreign ships.
D: As part(?) owners of the ships, captains got some of the profits.
举一反三
- The United States of America ______ one of the most developed countries in the world. A: is B: are C: was D: were
- The United States of America ______ one of the most developed countries in the world． A: is B: are C: was D: were
- The colonies that became the first United States were for the most part English. （)
- 50. The United States of America _____one of the most developed countries in the world. A: is B: are C: was D: were
- When the people saw the land,（） A: only passengers were glad B: the sailors had to swim ashore C: they were surprised at the news that some ships never arrived D: all of them were excited