What did they do?
They grilled fish.
What's she doing in picture?
She's making a sandwich. She's putting salami on bread/a slice of salami on a slice of bread.
What's he doing in the picture?
He's frying noodles.
What's she doing in the picture?
She's chopping carrots.
What's she doing in the picture?
She's baking a cake.
What's she doing in the picture?
She's spreding butter on bread/on a slice of bread.
What did he do?
He roasted duck/chicken/turkey/poultry.