Comprehensive ESL grammar worksheet on Present Perfect. Includes grammar notes and a variety of tasks to develop students' English fluency.
Present Perfect Tense - Past Participles - esl-librarycom 下载积分:800 内容提示: Present Perfect Tense - Past ParticiplesA. Write the simple past and past participle of the following verbs.simple form simple past past participle1. work 2. do 3. eat 4. call 5. begin 6. give 7. answer ...
present-perfect 现在完成时 Present Perfect Copyright 2007. This e-book is produced and distributed by Red River Press Inc. All rights reserved. The contents within this e-book/document may only be photocopied by members of ESL-Library.com, in accordance with membership terms and conditions....
both the present perfect and present perfect progressive are common, and this can be confusing for students. To clear up this confusion, try presenting these two tenses using the method below, which focuses
43、,革新invest投资integrate使结合;使一体化justified经证明的;合法化的launch开办(新企业)maintain保持;维修modernize使现代化negotiate谈判nominated被提名;被认命的overcome克服perfect使完善;改善perform执行,履行profit利润be promoted to被提升为be proposed as被提名(推荐)为realize实现(目标)获得(利润)reconstruct重建re...
The present perfect and present perfect progressive are very similar in some ways and quite different in others. Compare these common tenses side-by-side and see all their uses clearly. Open PDF Focus foundational grammar productive Related Materials ...