To play this video you need to enable JavaScript. Do you have a question you want us to answer? You can send us your questions to learningenglish@bbc.co.uk 1. We can use both present perfect and past ...
The present perfect with 'for' and 'since' Comparatives and superlatives The present perfect with ‘just’, ‘already’ and ‘yet’ Defining relative clauses ‘May’, ‘might’ and ‘could' Subject questions Too ...
- One possible explanation of the high degree of order in the present-day world is that it is just a question of luck. 对 今天 世界 之所以 高度 有序 的 一个 可能 解释 是， 这 恰恰 是 一种 侥幸。
- The journalists must be present at all important events and yet still let them have opportunity to write and file their stories. 记者 必须 出席 所有 的 重要 场合， 但 同时 又 得 让 他们 有 机会 写 消息， 发 消息。
- of swarm since if it is not present, then it is maybe impossible for the swarm to achieve any other group objective. 稳定性 是 群集 行为 的 基本 特性， 如果 群集 不 稳定， 那么 群集 不可能 达到 或 完成 各种 集体 目标 或者 任务。
- I would like to give my present employer a week or ten days ' notice, but otherwise I would be free to begin any time. 但 我 想 给 我 现在 的 老板 一个 星期 到 十 天 的 预先 通知， 否则 我 就 可以 随时 开始 工作。
- "Will not the mass of Paris and its inhabitants present an obstacle dividing and delaying the enemy? " he asked the French. 他 问 法国人： “ 巴黎 群众 和 居民 难道 不会 迎战， 分割 、 牵制 敌军 吗？ ”