题目内容
3.We ____ our foreign teacher since he ____ to America.( )| A. | haven't heard from;returned | B. | didn't hear from;returned | ||
| C. | didn't hear from;returns | D. | haven't heard from;returns |
分析 自从我们的外教回国后我们没有收到他的消息.
解答 答案:A.考查否定句.句意:自从我们的外教回国我们没有收到他的消息.根据题干中 since 自从,可知句子为现在完成时,构成:have或has+done.否定形式为haven't或hasn't+done.hear from sb得到某人的消息.hear的过去分词是heard.since引导的时间状语从句.从句用一般过去时.所以第二个空用returned.故选A.
点评 理解句子意思,分析句子结构和时态,再结合具体语境进行选择.
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