`+)` Get up at early. (V)

`->` They got up at early.

`+)` Do morning exercise. (V)

`->` They did morning exercise.

`+)` Have breakfast with parents. (V)

`->` They had breakfast with parents.

`+)` Do homework for Monday. (X)

`->` They didn't do homework for Monday.

`+)` Swim with Sam. (V)

`->` They swam with Sam.

`+)` Eat luch at my favorite restaurant. (X)

`->` They didn't eat luch at my favorite restaurant.

`+)` Go to the cinema with friends. (X)

`->` They didn't go to the cinema with friends.

`+)` Visit my grand parents. (V)

`->` They visited my grand parents.

`+)` Cook dinner. (V)

`->` They cooked dinner.

`+)` Go to the birthday party at 8:00 pm. (X)

`->` They didn't go to the birthday party at 8:00 pm.

Giải thích:

`-)` Cách làm:

`+)` Khẳng định:  S + V ( d / ed ) hoặc V ( cột 2 ) + ....

`+)` Phủ định:     S + didn't + V ( nguyên thể ) + ...

            Chúc em học tốt nha!

               @clearname