Agriculture is the country’s chief source of wealth, wheat ____ by far the cereal crop.( )
A: be
B: been
C: being
D: is
A: be
B: been
C: being
D: is
举一反三
- Agriculture is the country’s chief source of wealth, wheat ____ by far the biggest cereal crop.
- 03-51 Agriculture is the country’s chief source of wealth, wheat ____ by far the biggest cereal crop. A: A. is B: B. been C: C. be D: D. being
- 中国大学MOOC: Agriculture is the country’s chief source of wealth, wheat ____ by far the cereal crop.
- Agriculture is the country's chief source of wealth,wheat______by far thebiggest cereal crop.(2003.TEM-4) A: is B: been C: be D: being
- Agriculture is the country's chief source of wealth, rice ______ by far the biggest cereal crop. A: is B: been C: C. be D: D. being