OXFORD PRACTICE GRAMMAR-12 sau đây là giáo trình lý thuyết tiếng anh và bài tập áp dụng từ cơ bản đến nâng cao , nhằm giúp các bạn có thể tự mình ôn tập và củng cố thêm về nền tảng kiến thức môn Anh văn , tự tin đạt kết quả tốt trong kỳ thi ngoại ngữ | OXFORD PRACTICE GRAMMAR 12 THE PRESENT PERFECT 2 JUST ALREADY YET FOR AND SINCE VICKY SFE5 RACHEL OUTSIDE HE .ONCER HALL A Just already and yet We can use the present perfect with just already and yet. Just means a short time ago . Vicky heard about the concert not long ago. Already means sooner than expected . They sold the tickets very quickly. We use yet when we are expecting something to happen. Vicky expects that Rachel will buy a ticket. Just and already come before the past participle heard sold . Yet comes at the end of a question or a negative sentence. Here are some more examples. We ve just come back from our holiday. I ve just had an idea. It isn t a very good party. Most people have already gone home. My brother has already crashed his new car. It s eleven o clock and you haven t finished breakfast yet. Has your course started yet But for American English see page 377. B For and since We can use the present perfect with for and since. Vicky has only had that camera for three days. Those people have been at the hotel since Friday. I ve felt really tired for a whole week now. We ve lived in Oxford since 1992. NOT We live-here-sinee-1992. Here something began in the past and has lasted up to the present time. We use for to say how long this period is for three days . We use since to say when the period began since Friday . We use how long in questions. How long has Vicky had that camera Since Thursday I think. How long have Trevor and Laura been married Oh for about three years. We can also use the present perfect with for and since when something has stopped happening. haven t seen Rachel for ages. She hasn t visited us since July. 11 13 More on the present perfect 14-15 Present perfect or past simple 17 Present perfect continuous or simple 114 Yet still and already 121 For since ago and before 12 . EXERCISES 1 Just A Write replies using the present perfect and just. Use these past participles checked eaten made remembered rung tidied We must find out .