句子成分与基本句型（共10个小题；满分20分）
指出下列句子划线部分是什么成分（共5个小题；每小题1分，满分5分）
Our English teacher often give us some advice on how to learn English well.
The song Rolling Bead Curtain by Huo Zun is really interesting.
We junior three students have learnt English for almost three years.
Mr. Hu invited me to have dinner with him this weekend.
In some families , competition starts from a very young age.