`7.`

`(-)` Rachel is not driving to school

`(?)` Is Rachel driving to school?

`8.` 

`(-)` Nikos and Billy are not playing at the park

`(?)` Are Nikos and Billy playing at the park?

`9.` 

`(-)` The students are not studying English

`(?)` Are the students studying English?

`10.` 

`(-)` The test is not hard

`(?)` Is the test hard?

`11.`

`(-)` My best friend is not coming to my house

`(?)` Is your best friend coming to your house?
`_________________________`

`***` HTTD:

`(+)` S + am/is/are + V_ing + O

`(-)` S + am/is/are + not + V_ing + O

`(?)` Am/is/are + S +  V_ing + O?

`7)` 

`(-)` Rachel isn't driving to school.

`(?)` Is Rachel driving to school?

`8)`

`(-)` Nikos and Billy aren't playing at the park.

`(?)` Are Nikos and Billy playing at the park?

`9)`

`(-)` The students aren't studying English.

`(?)` Are the students studying English?

`10)`

`(-)` The test isn't hard!

`(?)` Is the test hard?

`11)` 

`(-)` My best friend isn't coming to my house.

`(?)` Is your best frieng coming to your house?

`***` Cấu trúc câu phủ định, nghi vấn ở thì Hiện tại tiếp diễn:

`(-)` S `+` tobe (am/is/are) + V_ing +...

`(?)` Tobe (am/is/are) `+` S `+` V_ing `+`...

`***` Lưu ý:

`+` You/we/they/N-số nhiều... `->` tobe 'are'

`+` I `->` tobe 'am'

`+` He/she/it/N-số ít, không đếm được.. `->` tobe 'is'