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. (TEM4-2003-41) A: is B: been C: be D: being
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- 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
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