Respuestas
Para formar oraciones es pasado progresivo se hace uso de Was / were + el verbo con terminación ing :
1.-My father was cooking dinner
(Mi padre estaba cocinando la cena)
2.- I was watching Tv until Nicolle called
( Yo estaba viendo Tv hasta que Nicolle llamó)
3.- They were singing in the Sara's partty
(Ellos estaban cantando en la fiesta de Sara)
4.- He was reading a book about dogs
(Él estaba leyendo un libro sobre perros)
5.- She was eating a big meal yesterday
(Ella estaba comiendo una gran comida ayer)
6.- They were watching cartoons
(Ellos estaban viendo caricaturas)
7.- We were cleaning our house
(Nosotros estábamos limpiando nuestra casa)
8.- You were training so hard
(Tú estabas entrenando muy duro)
9.- I was doing my homework this morning
(Estaba haciendo mi tarea esta mañana)
10.- My dog was runing around the park
(Mi perro estaba corriendo alrededor del parque)
11.- Maria was writing her novel
(Maria estaba escribiendo su novela)
12.- José was walking with his dog
(José estaba caminando con su perro)
13.- We were working in the class
(Nosotros estábamos trabajando en la clase)
14.- I was playing tenis very good
(Estaba jugando tenis muy bien)
15.- Teresa and Roberto were swimming in the pool
(Teresa y Roberto estaban nadando en la piscina)
16.- She was taking a shower
(Ella estaba tomando un baño)
17.- They were drinking beer
(Ellos estaban tomando cerveza)
18.- She was wearing her favorite dress
(Ella estaba usando su vestido favorito)
19.- You were speaking spanish so bad
(Estabas hablando español muy mal)
20.- I was driving to my job
(Yo estaba conduciendo a mi trabajo)
Suerte :)