We were shocked at news that he was elected chairman of the Students’ UnionA. the; theB

问题补充：

We were shocked at news that he was elected chairman of the Students’ Union

A. the; the

B. a; the

C. the; /

D. /; /

答案：

A. the; the

B. a; the

(答案→)C. the; /

D. /; /

解析：考查冠词。News后有定语从句，为特指，故加定冠词。Be elected 被选为，后面直接加称呼，不用冠词，故选C。