21. ---It looks heavy. Can I give you a hand?---_______.
She said she was unlucky _______ the train, and had to spend another day here.
Their family business has expanded enormously, while ours, _______, has declined.
—Excuse me, could you tell me the way to _______ Uncle John’s? —Sorry, we don’t have _______ John here.
—May I help you? —_______, but I’m just looking now.
— Linda apologized to me yesterday. — Impossible! _______. I know what kind of person she is.