题目内容：

写出下列画线部分词的词性和结构名称

1.They went to see an exhibition（展览）yesterday.

2.Can you hear me?

3.How many dictionaries do you have? I have five.

4.They helped the old with their housework yesterday.

5.He refused to do extra work.

6.I enjoy listening to popular music.

7.I think（that）he is suitable for his job.