Question

Before liberation(解放)my grandpa ________ from morning till night．

1. A.
   was made to work
2. B.
   made to work
3. C.
   made to be worked
4. D.
   was made work

Answer 1

A
解析：
若选B或C项，made之后缺少宾语。A、D项都是被动语态，但D选项中work之前没有to。在主动语态中我们说make sb．do sth．，而在被动语态中，不带to的不定式要加上to。故A项为正确答案。