精选优质文档-倾情为你奉上 Unit 1 单元测试题. 选择填空 (2* 15)1. -_does she study English? -_working with a group. A. How, By B. How, In C. How often, For D. What, At2. -I often make mistakes _grammar. -Why not ask your English teacher _help? A. in, to B. in, for C. at, to D. at, for3. _conversations with others is one of the secrets to_a successful language learner. A. Practice, become