50. The United States of America _____one of the most developed countries in the world.
A: is
B: are
C: was
D: were
A: is
B: are
C: was
D: were
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 United States of America _______ one of the most developed countries in the world.
- America is one of the countries in the world. A: most develop B: most developing C: most developed D: most development
- In world economy, the G7 refers to those seven countries with the world's largest developed economies — France, Germany, Italy, Japan, the United States, the United Kingdom, and Canada, — all of which are trade powers of the world.。( )