Joe Jones the eldest of the eight children had to out of high school at the age of 16 t

问题补充：

Joe Jones, the eldest of the eight children, had to out of high school at the age of 16 to help his father on the farm.

A. leave

B. drop

C. fall

D. go

答案：

A. leave

(答案→)B. drop

C. fall

D. go

解析：句意：Joe Jones是八个孩子中最大的，他16岁时不得不从高中辍学去农场帮助父亲。the eldest of the eight children 作Joe Jones的同位语；A．leave离开；后直接跟名词，不用接out of； C. fall 落下； D. go去；B. drop out of…表示“退出，离开……”，是固定短语，故选B。