【问题】 There are many cities __________________ very fast.单选题 (2 分) 2分 A. expand B.which expand C.which expanding D.to expand

There are many cities __________________ very fast.单选题 (2 分) 2分 A. expand B.which expand C.which expanding D.to expand

正确答案:B.which expand

题目解析:本题出自新疆广播电视大学,国家开放大学开放英语,由丰阳塔题库搜集整理。