Is there a library? ______. A. Yes, there is B. Yes, it is C. it isn’t D No , there is
–There are always many volunteers in great events, ________? --Yes. Many hands make light work.
She is planning on driving. Let’s help her ______the best road to take.
Great changes have taken place since then in the primary school _______I am studying.
—Do you know____________? —It’s about ten minutes’ walk.
—Which city has __________ population, Shanghai, Hangzhou or Ningbo? ----Shanghai, of course.