6.Grandma:Honey, is the beef ready? It ______ for two hours.Grandpa:I think so. Just turn the fire o
問題詳情
6.Grandma:Honey, is the beef ready? It ______ for two hours. Grandpa:I think so. Just turn the fire off. (A) is cooked (B) was cooked (C) has cooked (D) has been cooked