题目内容
Slaves were often made ______ day and night.
[ ]
A.work
B.works
C.to work
D.worked
答案:C
解析:
解析:
|
make sb. do sth. 句型变为被动式时,被省略了的不定式符号to要恢复。 |
练习册系列答案
相关题目