问题

―Kate doesn’t look very wellWhat’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
B:had read
C:is reading
D:was reading
正确答案是:
同类题型
but doctors, nurses or those ______ by Dr Hu______ to enter the patient’s room
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