–What’s troubling him? did Jim look quiet with his friends around.
--He’s considering a new project in his pany.
A. How
B. Why
C. Fairly
D. Seldom
网友回答
A. How
B. Why
C. Fairly
(答案→)D. Seldom
解析：空格所在的句子没有用问号，故排除 A和B，A和B引导特殊疑问句。这里想表示吉姆和朋友在一起的时候很少安静，故选D。Seldom：很少，不常。通常置于行为动词之前，助动词和 be动词之后。