I was underpressure from my parents to becometeacherA. a; a　　　B. the; theC. a;/ 　　　　D. /;

I was under pressure from my parents to become teacher．
A. a; a　　　
B. the; the
C. a;/ 　　　　
D. /;a

A. a; a　　　B. the; theC. a;/ 　　　　(答案→)D. /;a解析：考查冠词的用法。第一空为固定短语：under pressure在压力之下，第二空泛指一名老师，故用不定冠词a，句意：我在父母的压力下成为了一名老师。所以选D。

就是这个解释