Choose grammatically correct variant(выбрать грамматически правильный ответ) a) don't you know if you post a letter of complaint they would respond in time? b) don't you know if you've posted a letter of complaint they will respond in time? c) don't you know if you post a letter of complaint they will respond in time?

Don't you know if you post a letter of compliant

Idon't believe in superstitions,but one day my grandmother was an interesting case.  they say if your house will live a black cat,then it's good luck.  my grandmother got really sick,and how one afternoon she was walking down the street and saw a cat,she probably lost because she was wearing a collar,my grandmother took her unto his own home.this cat was black.and at the time that this cat has lived at grandma's house,with health became much better and soon she was completely healthy.  conclusion-a black cat at home is good.

A. 1. i  do my work well.   2.   you  seldom water your flowers.   3.   he  likes his job. 4. she  checks her e-mail regularly.  5.  we  know our duties. 6. do you cook your own meals? 7.they often visit their relatives. 8. do you call your parents every day? 9.  he  washes his car every week. 10. is she  sorry for her friends? 11. i like english, but i find it  difficult.b. 1. i love my  family. 2. you love your friends. 3. he loves his  girl. 4. she cares for her  boyfriend. 5. we must look after our  children. 6. they are worried about their future. 7. you can leave your  things here. 8. it’s a very old theatre. its  history is very interesting. 9. i read this book, but i don’t remember its  author. 10. it’s a good dictionary, but its  price is very high. 11. mind your own business.1.2. употребите необходимые по смыслу личные местоимения.1. mrs. grant is our teacher. she  is very competent. 2. denis has a new bike. it  is cool. he is happy. 3. fred and i are cousins. we are good friends. 4. the pupils are in class now. they  are taking a test. 5. my name is victor. i  am your new manager. 6. i came to moscow at five o’clock. my friends met me  at the station. 7. he loves you. do you love him? 8. my granny likes to come to our place. she spends her  weekends with us. 9. nobody knows these people. do you know them? 10. children should obey their parents. did you obey your  parents? 11. i am a good pupil. my  marks are excellent. 12. martin hopes that his life will be happy. 13. nina spends her holidays in the south. 14. would you like me to help you? i  am ready to do it. 15. — where is your  travel card, miss? — i’ve lost it.