(+)He drove to school at 8:00.
(-) He didn't drive to school at 7:00.
(?) Did He drive to school at 8:00? yes, He did.
(+)He slept late yesterday.
(-)He didn't sleep yesterday.
(?)Did He sleep late yesterday? yes , he did.
(+)She spoke in the class.
(-)She didn't speak in the class.
(?)Did she speak in the class? yes , she did.
(+)Marisela ate in the restaurant.
(-)Marisela didn't eat in the restaurant.
(?)Did Marisela eat in the restaurant? yes , she did.
(+)They wrote a book.
(-) They didn't write a book.
(?)Did they write a paper? no they did.
