It ______ be the postman at the door. It’s only six o’clock.
-- Which do you prefer, oranges or apples? -- __________ . I' d like bananas.
-- Oh, no, we've missed the 8 o'clock train! --________ . There's another one in half an hour.
--_______________? -- Orange, I think.
-- Hello! Is that Mr Wang speaking? --Yes,____________?
-- Is Mr Smith really very ill? --________. He's in hospital.