– Physics _____ more difficult than Chinese, do you think so? -- Yes, I think so. A. is B. are C. has
---Where did you get the book? ---From the library. And I have _______it for two weeks.
---Tom, why not stop ________ a rest? --- Oh, no, Mum. It’s so exciting that I can’t stop _______ the kite.
---Is that Sandy speaking? ---Sorry, she isn’t in now. She ______the cinema with her aunt.
---Have you read today's morning paper? ---Not _______. What's the latest news?
---Could you please help me check what's wrong? ---Sorry, I don't have much _______of the computer.