— I’ve never been to the Great Wall, what about you? — ______. I think it must be very great.
–What was your brother doing at this time yesterday? -- He was reading a magazine ________ I was writing an e-mail at home.
–Is Lucy or Lily the ______ of the twins? --Lucy. She was born half an hour earlier.
–Your coat looks very nice. What’s it made______? --Cotton, and it is made ______ Wuhan.
–Which is the smallest number of the four? --________.
–Excuse me, but can you tell me which road I should take to the post office? --______ of the four roads will do.