II. Choose the best answer(选择最恰当答案)：（共20分）
31. We are planning______ one-day trip to Century Park during the winter holida ys. ______trip must be full of fun, I think.
A. a, The B. an, The C. the, A D. the, The
32. _______December 11,2001, China formally became the 143rd member of the WTO
A. in B. On C. At D. Until
33. -----Would you like some______?
-----OH, YES, just a little
A. milk B. apple C. pears D. oranges
