Read the sentences. Choose the suitable option.
When I _________ the kitchen, I __________ that my mother _____________ at the table and ___________ some cabbage. She _____________ dinner.

• entered, saw, was standing, cutting, was cooking
• enter, see, stands, cuts, cooks
• have entered, saw, is standing, cutting, has cooked
• entered, saw, is standing, is cutting, cooks