牛津九年级(A)Unit 6 单元测试 第一卷 I. 单项填空 (共10小题;每小题1分,共10分) 从A、B、C、D四个选项中,选出可以填入空白处的正确选项。 1. People didn’t know _________ during the night. A. what was happened B. what the murder happened C. what happened D. how the murder has happened 2. _____ the police ______ any arrests? A. Have, made B. Has, made C. Are, made D. Is, made 3. One of the suspects is _________ schoolboy. A. a 18-year-old B. an 18-years-old C. a 18 years old D. an 18-year-old