单项选择.( )1.I have ___ paper,but I don't have ___ envelopes.A.any;some B.some;any C.any;any
（ ）2.My grandfather ___in a city two years ago,but he ___on an island now.A.live;lived B.lives;livesd C.lived;lives
( )3.—___ did Jenny buy the book Two Little Bears?
—At the bookstor near her house.A,What B.Where C.When（要解释为什么是这个答案）