Question

1. When I came home my mom ..... dinner for us. ( to cook )
2. " What .... you .... about? ( to talk )
3. What ...  you ... at a minute ago? ( to laugh )
4. The spaceship captain .... the satellite which ... very fast. ( to notice / to move )

Answer 1

1. When I came home my mom was cooking dinner for us. ( to cook )
2. "What are you talking about? ( to talk )
3. What did you laugh at a minute ago? ( to laugh )
4. The spaceship captain noticed the satellite which was moving very fast. ( to notice / to move)