| 标题 | have been doing是什么时态 |
| 范文 | 例句： I have been waiting for you for almost 2 hours. 我一直在等你，快两个小时了。 Where have you been hiding? 你都跑到哪去了？ Who has been making trouble? 是谁一直在捣乱？ We have been looking all over for you. 我们到处在找你。 上一篇：全国一本重点大学 下一篇：lend的用法和短语例句 |
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