`1.` 

`(-)` It isn't very hot in summer.

`(?)` Is it very hot in summer?

`->` Yes, it is.

`->` No, it isn't.

`2.` 

`(-)` They don't visit their parents on sunday.

`(?)` Do they visit their parents on sunday?

`->` Yes, they do.

`->` No, they don't.

`3.` 

`(-)` Nga doesn't work in a bank near her house.

`(?)` Does Nga work in a bank near her house?

`->` Yes, she does.

`->` No, she doesn't.

`4.` 

`(-)` Linh isn't interested in Math.

`(?)` Is Linh interested in Math?

`->` Yes, she is.

`->` No, she isn't.

`-------------------`

`Note:` Thì HTĐ

`@` Với động từ thường:

`(+)` S + V(s/es)...

`(-)` S + doesn't/don't + V-inf...

`(?)` Do/does + S + V-inf...?

`->` Yes, S + do/does.

`->` No, S + don't/doesn't.

`@` Với tobe:

`(+)` S + am/is/are...

`(-)` S + am not/isn't/aren't...

`(?)` Am/is/are + S...?

`->` Yes, S + am/is/are.

`->` No, S + am not/isn't/aren't.

`#vu0000`