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caothuyduong2k9
2 năm trước
Ta đã biết giá trị của mỗi số của một số tự nhiên viết trong hệ thập phân và vị trí của nó chẳng hạn chữ số 2 có giá trị bằng 2 nếu nó ở hàng đơn vị có giá trị bằng 20 nếu nó nằm ở hàng chục Tuy nhiên có một chữ số mà giá trị của nó không thay đổi dù nó nằm ở bất kỳ vị trí nào đó là chữ số nào
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She hasn't arrived __________. * ever never yet ago _______________ to him yet ? * Do you speak Have you spoken Did you speak Has you spoken I have been a teacher _______ more than ten years. * since at for in We haven't seen Janine ______________Friday. * for since on at _____________ have you been at this school ? - For 10 years. * Where How long How much When Have you ___________ been to Argentina ? * yet ever for never When ____________ the school ? * have you ever joined did you joined did you join have you joined _____________ in England ? * Did you ever worked you worked Didn't you have worked Have you ever worked That's the best speech _________ * I didn't hear I used to hear I've ever heard I never heard ______ to him last week. * I've already spoken I didn't spoke I speaked I spoke ______ from a business trip to France. * I come back I came back I've just come back I never came back John went out to visit his friend……… * 3 hours ago after 3 hours for 3 hours since 3 hours I have learned English ……………last summer holiday * ago since for every Joseph often goes to library to borrow books and documents……….Sunday * every last since for Do you know Johnny ? Yes, I do. I ………..for several hours before. * Have met meet is meeting met Have you ever played piano? Yes,I have learned to play piano ………I was 10 * since after when for ………..has never been this city before * He You We They ………..has never been this city before * You We They He chọn đáp án đúng cho vào câu hộ em cái ạ :]]

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