问题
选择题
Children are often warned ______ with fire.
A.not to play
B.to play
C.don’t play
D.doesn’t play
答案
答案:A
题目分析:句意:经常警告孩子们不玩火。Warn sb (not)to do sth警告某人(不)做某事,其被动语态形式是sb be warned (not)to do sth,所以选A。