Form the conditional sentences 1 i did not translate the article yesterday because i had no dictionary. 2 the bow was so heavy that i could not carry it . thats why i took a taxi. 3you left the child alone in the room so he hurt himself . 4 he is an excellent specialist but i cannot ask his advice because i am not acquainted with him . 5 you know the material well enough but you are very absent-minded and thats why you always make many mistakes .

1. if the travellers had had a camera with them, they would (could) have taken pictures of the beautiful scenery. 2. if there had been any sugar left, we should not have had to go to the shop late in the evening. 3. if this house were not situated close to a chemical plant, the air around would not be bad and the house would be   very good for living. 4. if i were acquainted with him, i should ask his advice. 5. if you did not have a toothache, you would (could) enjoy this merry evening party. 6. if you were not so absent-minded, you would not make so many mistakes. 7. if you had rung me up, i should have known you were in trouble. 8. if you had not left the child alone, he would not have hurt himself. 9. if they had not spent a year in the tropics, they would not have got so sun-tanned. 10. if it had not rained so heavily, we should not have got drenched to the skin. 11. if you had watched the cat, it would not have eaten the fisli. 12. if a huge black cloud had not appeared from behind the forest, we should not have turned back and hurried home. 13. if it were not so late, we should go to see them. 14. if you had not been in her way, she would not have been angry.

Это не  past simple или past continuous, а  past simple или  present perfect.правило такое: если речь идет об уже свершившемся действии, но  без указания когда именно, и оно могло быть совершено и прямо сейчас- используется  present perfect. если же  речь идет об уже   свершившемся действии  с указанием конкретного времени или события, которые уже завершились-  используется  past simple.2) a: have you seen this musical? ( see) b: yes , it's great ! i saw it when i was in london last month. (see) 3) a: have your parents visited your office ? ( visit)  b: yes, they came last week. ( come)  4) a: have you had anything to drink? ( have) b: i had some tea and a glass of orange juice at breakfast. ( have)