单项选择题
A.Two thousand feet. B.Twelve thousand feet. C.Twenty thousand feet. D.Twenty-two thousand feet.
A.It’s a new way of applying chemical fertilizer. B.It’s an improved method of harvesting crops. C.It’s a creative technique for saving labor. D.It’s farming process limiting the use of ploughs.
A.He disliked being disciplined. B.He was expelled by the university. C.He couldn’t pay his gambling debts. D.He enjoyed working for a magazine.