正在下载：九年级上册英语Unit 9单元检测

一、选择填空（15小题，每小题1分，共15分） 1. My teachers try their best _________ our problems. A. solve B. work out C. to work out D. to solve 2. The boy has _________ of books in his house. A. plenty B. lot C. one D. think ...