If you factor in the projected rates of technological change, either your skills will become unnecessary, or your industry outdated.
如果你考虑到技术变化的预期速度，那么你的技能将变得很多余，或者你的行业会成为过去式。
Don't want to meaningless wait, you will become my past tense.
不想无意义的等待，你将成为我的过去式。
In this lesson, students will identify the locations for common activities, use simple past tense to discuss where they and others went the previous day.
在这堂课中，学生将识别常去参加活动的地方，用一般过去式讨论他们自己和其他人前一天去过哪里。
In this lesson, students will identify common types of illnesses, use simple past tense to explain why they and others were absent from school.
在这堂课中，学生将识别常见类型的疾病，用一般过去式解释他们自己和其他人缺课的原因。
Speaking of the knacks, when you know the past forms of some irregular verbs, you will find some rules.
要说窍门，在多背一些动词的不规则过去式后，你会发现还是有一些规律的。
In this lesson, learners will be able to understand and use verbs in present and simple past tenses, ask and answer questions about what happened in the past.
在这堂课中，学员将能理解并使用在一般现在式和一般过去式中出现的动词，就过去发生的事情提问并回答。
Of course, the phone conversation will never be completely obsolete.
当然，打电话永远不会完全地成为过去式。
The exam will be about 25 verbs and the students will have to know both PT and Base form's spelling.
考试将涉及25个动词，同学们需要掌握原形和过去式的拼写。
The exam will be about 25 verbs and the students will have to know both PT and Base form's spelling.
考试将涉及25个动词，同学们需要掌握原形和过去式的拼写。
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