问题
选择题
―Kate doesn’t look very well. What’s wrong with her?
―She has a headache because she ________ too long; She ought to stop work.
A．has been reading
B．had read
C．is reading
D．was reading
答案
A。
has been reading为现在完成进行时，表示一个动作从过去开始一直进行到现在。