单项选择题
A. as much as 8, 116 dollars B. no more than 720 dollars C. less than the average annual income D. the same as the average annual income
A. fish-eating mammals. B. sea animals. C. grass-eating fish. D. land animals.
A. should have at least two children B. have to be more than 30 years old C. should have been married for years D. need a few years of work experience