Tommy is only child in the family so his parents make fuss of him.A. an; 不填B. 不填; theC

问题补充：

Tommy is only child in the family, so his parents make fuss of him.

A. an; 不填

B. 不填; the

C. 不填; a

D. the; a

答案：

A. an; 不填

B. 不填; the

C. 不填; a

(答案→)D. the; a

解析：考查冠词。第一空the放在only前面表示特指独生子；第二空的固定词组make a fuss of…过于溺爱…；句意：Tommy是家里的独生子，所以他的父母亲过于溺爱他。故D正确。