问题
选择题
—Do you love teaching, Miss He?
—I fell in love with teaching in 2000. I ________ for twelve years by this summer.
A．will teach
B．would have taught
C．has been teaching
D．will have been teaching
答案
答案：D
答案：D 考查时态。由答语时间状语“by this summer”可知，应该用将来完成进行时。