Black broke his leg. He has just had X-ray examination. doctor said he needed operation.
A. a; The; an
B. a; A; an
C. an; A; an
D. an; The; an
网友回答
A. a; The; an
B. a; A; an
C. an; A; an
(答案→)D. an; The; an
解析：x-ray的首个音标为元音音标，故用an，而第二空需要的是定冠词为the，而第三个空，后接an，故选答案为D。