Question

【题目】A knife attack happened at the subway and at least 3 people ________.

A. killed B. are killed C. were killed D. were killing

Answer 1

【答案】C

【解析】句意：在地铁里发生了一起用刀袭击事件，至少三人被捅死。and是并列连词，前后动词时态一致，根据happened可知用过去式，结合句意可知用被动语态。被动语态构成：be+动词的过去分词。故选C。