Replace the infinitives in brackets by the present perfect or past simple1. you ever (to be) to this picture gallery? — yes, i (to visit) it once when a youth, and the pictures (to make) a great impres­sion on me. since then i (not to be) here.2. you already (to see) the new film? — yes, i {to manage) to see it yesterday. i (to go) to the cinema in the evening and (to get) two tickets quite easily.3. you always (to draw) books from our library? — yes, as a rule, i (to draw). last year i (to go) to another library but i (not to find) it as good as this one. i (to draw) books from here for some 10 months already.4. i (not to see) anything of jane lately. when you (to see) her last? — i (to meet) her two days ago. i (to think) that she (to change) very much. 5. you (to have dinner) already? — no, not yet. the waitress (to take) my order 15 minutes ago and (not to bring) me anything yet. 6. you ever (to see) this girl dance? — oh yes, i (not to miss) a single performance with her. i (to watch) her for many years. she (to be) not only a splendid dancer, but a good actress as well. 7. you (to bring) your bathing suit with you? —yes, i am going to show how much i (to improve) since last summer. i (to take) some swimming lessons lately. now it (to be) for you to judge if i (to make) any progress. 8. where you (to get) this fine new bicycle from? — my parents (to give) it to me as a birthday present. — let us go cycling this afternoon. i (to find) some really nice places in the vicinity. 9. the egyptian civilization (to be) the oldest which (to leave) us art. it (to begin) about five thousand years ago. the story of egyptian art (to cover) three thousand years and (to include) the art of different periods.

1. Have you ever been to this picture gallery? — Yes, I have visited it once when I was a youth, and the pictures made a great impression on me. Since then, I have not been here.
Explanation: The verb "to be" is changed to "have been" in the present perfect tense. "To visit" is changed to "have visited" in the past simple tense. "To make" is left unchanged as it is already in the past simple tense. "To be" is changed to "have not been" in the present perfect tense.

2. Have you already seen the new film? — Yes, I managed to see it yesterday. I went to the cinema in the evening and got two tickets quite easily.
Explanation: "To see" is changed to "have already seen" in the present perfect tense. "To manage" and "to go" are left unchanged as they are already in the past simple tense. "To get" is changed to "got" in the past simple tense.

3. Do you always draw books from our library? — Yes, as a rule, I do. Last year, I went to another library but I didn't find it as good as this one. I have been drawing books from here for some 10 months already.
Explanation: "To draw" is changed to "have been drawing" in the present perfect tense. "To go" is changed to "went" in the past simple tense. "To find" is changed to "didn't find" in the past simple tense. "To draw" is left unchanged as it is already in the past simple tense.

4. I haven't seen anything of Jane lately. When did you see her last? — I met her two days ago. I think she has changed very much.
Explanation: "To see" is changed to "haven't seen" in the present perfect tense. "To see" is changed to "did you see" in the past simple tense. "To meet" and "to think" are left unchanged as they are already in the past simple tense. "To change" is changed to "has changed" in the present perfect tense.

5. Have you had dinner already? — No, not yet. The waitress took my order 15 minutes ago and hasn't brought me anything yet.
Explanation: "To have dinner" is changed to "have had dinner" in the present perfect tense. "To take" is left unchanged as it is already in the past simple tense. "To bring" is changed to "hasn't brought" in the present perfect tense.

6. Have you ever seen this girl dance? — Oh yes, I haven't missed a single performance with her. I have watched her for many years. She is not only a splendid dancer but a good actress as well.
Explanation: "To see" is changed to "have ever seen" in the present perfect tense. "To miss" is changed to "haven't missed" in the present perfect tense. "To watch" is changed to "have watched" in the present perfect tense. "To be" is left unchanged as it is already in the past simple tense.

7. Did you bring your bathing suit with you? — Yes, I am going to show how much I have improved since last summer. I have taken some swimming lessons lately. Now it is for you to judge if I have made any progress.
Explanation: "To bring" is changed to "Did you bring" in the past simple tense. "To improve" is changed to "have improved" in the present perfect tense. "To take" is changed to "have taken" in the present perfect tense. "To be" is changed to "have made" in the present perfect tense.

8. Where did you get this fine new bicycle from? — My parents gave it to me as a birthday present. Let us go cycling this afternoon. I have found some really nice places in the vicinity.
Explanation: "To get" is changed to "did you get" in the past simple tense. "To give" is changed to "gave" in the past simple tense. "To find" is changed to "have found" in the present perfect tense.

9. The Egyptian civilization is the oldest which has left us art. It began about five thousand years ago. The story of Egyptian art covers three thousand years and includes the art of different periods.
Explanation: "To be" is changed to "has left" in the present perfect tense. "To begin" is changed to "began" in the past simple tense. "To cover" is left unchanged as it is already in the past simple tense. "To include" is changed to "has included" in the present perfect tense.