问题
选择题
— Jenny, how many years have you studied in China?
— I ________ here for three years by the end of this month.
A．study
B．have studied
C．will have studied
D．am studying
答案
答案：C
考查时态。by意为：到…为止；引导的从句做状语时，主句必须使用完成时. the end of this month是表示将来的时间。所以这里使用将来完成时。