1) Nancy has cleaned (Present Perfect) her room today, and it looks (Present Simple) very nice. 2) We have played (Present Perfect) this piece of music many times, so we know (Present Simple) it very well now. 3) You have opened (Present Perfect) the window, and it is (Present Simple) very cold.4)Jack has lost (Present Perfect) his textbook, he cannot do (Present Simple) his homework now. 5) I have forgotten (Present Perfect) Sophia\'s telephone number, so I cannot call (Present Simple) her. 6) You have written (Present Perfect) your compositions, so you may go (Present Simple) home now. 7) The school has bought (Present Perfect) new books and the teacher will give (Future Simple) them to us now.