oh,

1.（表示领悟）哦，唔used when you are reacting to sth that has been said, especially if you did not know it before

2.（表示惊奇、恐惧、高兴等）啊，哈，哎哟used to express surprise, fear, joy, etc.

3.（用以引起注意）喂，嘿，嗨used to attract sb's attention

4.（用于思索想说的话时）嗯used when you are thinking of what to say next

1.呀,啊

2.哦

3.冠于人名前,起呼语作用

1.used when you start telling someone something, for example something that you have just remembered; used at the beginning of a reply for showing that someone has just reminded you of something

2.used for expressing an emotion such as surprise, anger, or happiness; used in expressions such as “Oh God!,” “Oh dear!,” “Oh no!”, and “Oh my!” for showing an emotion such as surprise, fear, or disappointment. A lot of people may say “Oh God” , but it offends some people.

3.used in expressions such as “Oh I see” and “Oh right” for showing that you now understand something

4.used for accepting someone’s answer to your question

5.used when you pause because you are thinking about what you are going to say

6.used for showing that you did not know something

7.used when telling a story for introducing the words that you or someone else has said

1.a way of saying “zero,” used for example when you are telling someone a telephone number or saying a date, such as 1908

2.Ohio