It was not long he was born that his mother died of illness.A. beforeB. whenC. thatD. aft

问题补充：

It was not long he was born that his mother died of illness.

A. before

B. when

C. that

D. after

答案：

A. before

B. when

C. that

(答案→)D. after

解析：这题考查强调句的用法：强调的是：not long after he was born“在他出生后不久’,句意是：在他出生后不久他妈妈就死于疾病。选D。