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    • www.thefreedictionary.com
      sus·tain (s-st n) tr.v. sus·tained, sus·tain·ing, sus·tains 1. To keep in existence; maintain. 2. To supply with necessities or nourishment; provide for. 3. To support from below; keep from falling or sinking; prop. 4. To support the spirits, vitality, or
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    • www.thefreedictionary.com
      purge (pûrj) v. purged, purg·ing, purg·es v.tr. 1. a. To free from impurities; purify. b. To remove (impurities and other elements) by or as if by cleansing. 2. To rid of sin, guilt, or defilement. 3. Law To clear (a person) of a charge or an imputation.
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日期:2026-04-19
Use these English grammar lessons for self study or to consolidate your lessons with your teacher. There is absolutely nothing to pay but please support us by buying our books and CDs in the future. We recommend that you read the grammar explanation on th...
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日期:2026-04-22
Present Perfect Simple and Present Perfect Continuous We use the present perfect tense to talk about ......
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日期:2026-04-18
Present Perfect Simple and Present Perfect Continuous We use the present perfect tense to talk about ......
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日期:2026-04-19
Often there is very little difference between the present perfect simple and the present perfect continuous ......
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日期:2026-04-22
The present perfect continuous can also be used (often with 'since' and 'for') to talk about unfinished ......
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日期:2026-04-22
Click here to review how to make the present perfect continuous. Click here to return to the list of English ......
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日期:2026-04-22
Present Perfect Simple and Present Perfect Continuous. We use the present perfect tense to talk about ......
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日期:2026-04-24
This present perfect vs past simple quiz will help you test your understanding of when to use the present ......