在中国、印度等发展中国家的农村,自然经济依然具有相当的发展,这也是农村地区出现农业、农民、农村之间相互制约(三农问题)致使经济不发达现象的根源之一。中国自然经济作为一种经济形态最终结束,是在
()— Is your mother’s sister your aunt? — _______. A.Yes B. No C. Uncle
( )— How do you go to school? — ______. A. By bike B. On walk C. By bikes
( ) We go to the _______ to fly kites. A. zoo B. farm C. park
( ) What colour ______ your eyes? A. is B. am C. are
( ) These are _____. A. bike B. bikes C. a bike