问题
选择题
The girl was often heard _______ happily in her room.
A.sings
B.sing
C.singing
D.to sing
答案
答案:D
题目分析:句意:这个女孩经常被听到在她的房间里快乐的唱歌hear sb. do sth,听见某人做某事,当这个句型用于被动结构中的时候,动词原形前要加上to。故选D。
The girl was often heard _______ happily in her room.
A.sings
B.sing
C.singing
D.to sing
答案:D
题目分析:句意:这个女孩经常被听到在她的房间里快乐的唱歌hear sb. do sth,听见某人做某事,当这个句型用于被动结构中的时候,动词原形前要加上to。故选D。