$#Hy$

Unless (trừ phi) = If ... not ( nếu... không)

`8, ` Unless I have a quiet room, I won't be able to do anything.

`9,` Unless she hurries, she will be late

`10,`  Unless the weather is bad, we will go out. 

`11,`  Unless you are careful, you will cut yourself with that knife

`12,`   Unless you like this one, I'll bring you another.

`13, `  Unless I have a quiet room, I won't be able to do anything.

`14,`  Unless she hurries, she will be late

`15,`  Unless the weather is bad, we will go out. 

`16,` Unless I hear Mr.Brown I wouldn't bother to call you 

`17,`  Unless Mr.Anderson sends us this address, we can't write to him.

`18,`  Unless you study harder, you are going to fail the examination.

`19,`  Unless Tom brings up the matter himself, I won't say anything