Question

【题目】John since he a father.

A.hasn’t smoked … has becomeB.didn’t smoke … became

C.didn’t smoke … has becomeD.hasn’t smoked … became

Answer 1

【答案】D

【解析】

句意：约翰自从成为一名父亲后就再没有抽烟了。

考查动词时态。根据since引导时间状语从句的时态为：主句用现在完成时，since引导的时间状语从句用一般过去时，可知第一空用现在完成时，第二空用一般过去时，故选D。