––__________ I smoke here?–– No, you __________.

“I      her a long time ago,” he doubted, “She doesn’t look at all familiar.”

— Mum, will you buy me the new iPad after the Entrance Examination?— I’m afraid I ________, dear. We are short of money now.

—Have you decided when to leave for Australia?—Not yet. We _________ set off at the end of this month.

Sometimes smiles around the world ______ be false, hiding other feelings like anger, fear or worry.