Question

---Very few students passed last monthly exams, ______?
---Yes. They all passed because they did good preparations before the exams.

A．do they	B．didn’t they
C．did they	D．don’t they

Answer 1

C

试题分析: 反义疑问句一般遵循前肯定则后否定，前否定则后肯定，疑问部分时态，人称要与前文保持一致。Very few非常少，表达的是否定含义，故反问部分用肯定形式，根据passed可知反问部分助动词用过去时态，选C。
点评：本题关键点在于对前文时态的判断，判断时态有多种方法，如时间词，上下文语境等，本题就是凭借时间词before判断出前文为完成时态，平时需加强练习。