题目内容
11. Lingling and her classmates Mr Smith since then.
A. didn't hear from B. don't hear from
C. won't hear from D. haven’t heard from
11. D
11. D 考査动词时态用法。根据时间状语从 句since then可知强调从过去某一时间到现 在发生的事情,故用现在完成时态。故选 D.
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