Cathy is taking notes of the grammatical rules in class at Sunshine school, where she English for a year.
A. studies
B. studied
C. is studying
D. has been studying
网友回答
A. studies
B. studied
C. is studying
(答案→)D. has been studying
解析：考查时态的区别。题意为：凯西正在阳光学校的课堂上记录语法规则，她在这里学习英语已有一年的时间。由题干中得is taking notes…可知她现在任然在sunshine school上学，在这所学校学英语至今已一年有余，所以要用现在完成时态。