Question

【题目】More than 20 people ________ in traffic accidents ________ last May.

A. have died, for B. have been dead, since

C. have died, since D. have been dead, for

Answer 1

【答案】B

【解析】

试题分析：since在引导时间状语时，后面接时间点；for在引导时间状语时，后面接一段时间。根据下文last May即可断定选B。句意：自从去年五月以来，超过20人死于交通事故。结合语境可知本句描述的是现在已经完成的动作，用现在完成时态。