Present Perfect Vs Simple Past Exercises

'Can', 'could', 'be able to', 'manage to' Present tenses Present perfect continuous 'Like' for preference and description Adverbs of frequency 'Have to' and 'must' The past simple tense ...

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Present Perfect Vs Simple Past Exercises 2

The Guardian: The present tense is perfect English for history, sports commentary – and jokes

Present Perfect Vs Simple Past Exercises 3

The present tense is perfect English for history, sports commentary – and jokes

Present Perfect Vs Simple Past Exercises 4
  1. 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。
  1. 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。
Present Perfect Vs Simple Past Exercises 6
  1. 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。
Present Perfect Vs Simple Past Exercises 7
  1. 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。