—It is reported that there is big breakthrough in the cancer treatment.—If only his son co

—It is reported that there is big breakthrough in the cancer treatment.
—If only his son could be brought back to life!
A. a ; 不填
B. 不填 ; a
C. the ; the
D. a ; the

(答案→)A. a ; 不填B. 不填 ; aC. the ; theD. a ; the解析：考察冠词，a breakthrough 一个突破，表示泛指 life 意为生活的时候是不可数名词，作生命的时候是可数名词句意为，--据报道，在癌症治疗方面出现了一个大的突破---要是他的儿子能活过来就好了

对的，就是这个意思