When father was young, he ______ from morning till night. [     ]A. was made workB. was made workingC. made to workD. was made to work

本题考查被动语态中固定搭配的用法，核心在于掌握“make”在被动语态中的正确形式。
关键点：

1. “make sb do sth”变为被动语态时，需保留不定式符号“to”，即“sb is made to do sth”。
2. 注意区分其他选项中常见的错误形式（如省略“to”或使用动名词）。

选项分析

A. was made work

• 错误原因：缺少不定式符号“to”。
• 正确形式应为“was made to work”。

B. was made working

• 错误原因：将动词-ing形式（动名词）误用于被动语态中。
• “make”后需接不定式，而非动名词。

C. made to work

• 错误原因：缺少被动语态中的系动词“be”（即“was”）。
• 结构不完整，不符合被动语态要求。

D. was made to work

• 正确形式：符合“sb is made to do sth”的被动语态结构。
• 时态为一般过去时，与句中时间状语“when father was young”一致。