牛津譯林版高中英語必修二unit 1《tales of the unexplained》（grammar and usage 1）課件-預(yù)覽頁
【正文】 been waiting for an hour. past ___________________________________ One hour ago Present Mavis started waiting for Kelly. Kelly arrives. have been observing have been talking have been taking have seen have been writing 1990present: Crop circles are so interesting 1990present: Crop circles are so interesting to study! I(4) crop circles too. have been studying 1. Prepare Grammar and usage on page 1011. 2. Finish Part C1 and C2 on page 88 in Workbook . Homework 。Grammar and usage Unit 1 Present perfect tense Present perfect continuous tense Unit 1 課件描述： 本課件總結(jié)了現(xiàn)在完成時和現(xiàn)在完成進(jìn)行時的用法，并設(shè)計了一些練習(xí)題幫助學(xué)生鞏固對這兩 種時態(tài)的掌握
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