---Have you ever fed them?---__________. But I have cooked for them.Yes, I have. B. No, I haven’t. C. No, I didn’t.
-- Excuse me, where can I exchange _________? --There’s a bank on the second floor.
-- Is this your notebook? -- No, it isn’t. Ask Bill. He is looking for ___________.
--Why are you laughing? --Oh, I’ve just read interesting story.
—Can you tell me how to use a micro blog on my phone? —_________. But I have to finish my work first.
—Sandy, it’s really grateful for your help with my physics. —My pleasure. ____________.