The boy is very fat too much food.A. soB. so ofC. becauseD. because of

问题补充：

The boy is very fat too much food.

A. so

B. so of

C. because

D. because of

答案：

A. so

B. so of

C. because

(答案→)D. because of

解析：because与so均为连词，要连接两句话，而本句中，后接的是名词性短语，故将A与C排除，而so不能与of连用，故只能选择because of，故选D