B. up C. up with D.up A. on down 6.Should we try to _every custom or tradition which is in danger of dying out? C. entertain I used to study five years ago. D.at where D. open A. preserve 7. I recently visited the school B. act out A.which B.where C.that 8. The girl put up the Christmas decoration is my sister. C. which A. who B. where D. whom