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过去完成进行时 |
过去完成进行时: 1.构成:had been + 现在分词
2.功能:表示过去某个时间之前一直在进行的动作。
比较:
测试精编
1. It ________ for four days when we arrived, so the roads were very muddy.
2. He told us that he ________ there since 1982.
3. He had been learning English for 3 years before he came here and ________ now.
4. By the end of last week, he ________ in the company for 10 years.
5. Not until then did people know that he ________ important military information to the enemy for a long time.
KEYS 1. C 2. B 3. A 4. B 5. D |
文章来源:http://www.only4english.com/te_news_knowledge_copy_copy/2019-09-07/3393.chtml |