单项选择题As Christmas approached, with people Acrowdeddepartment stores, restaurants, theatres and movie houses, the downtown area Bwas, Cas always, Dthe busiest.
单项选择题The sound of Athe roaringof a tiger is Beverheard by jungle dwellers Cwithoutfeelings of unease, for a year does not elapse without victims Dfalling tothe tiger s ferocity.